The slushies were very flavorful and smooth!! The ice cream was also good. I recommend the 50-50 slushie-ice cream. Owner is happy to let you sample. read more

Owner was super nice and informative. The flavors were super refreshing And not syrupy. The price was amazing for the amount we got. We can't wait to go back again. read more

Once Upon A Slush - Sour Apple and strawberry Orange cream and strawberry - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

I'm sure glad the ice cream place across the street ran out of all the flavors we wanted to try because we discovered this place and it is amazing! I don't know why there aren't more reviews on this place. I don't usually give out 5*'s unless I really like the establishment and this place exceeded by expectations. I want to note this place is super clean, hidden away in a back alley off the main street, when we walked in this place was very clean and well decorated especially for Halloween! Firstly, they use Straus Cream for their soft serve! Super creamy with a silky smooth texture and decadent. We ended up getting the combo which is $12 and you choose a slush and a soft serve flavor. I would recommend getting the vanilla, which you wouldn't normally hear me say, but the machine adds this syrup/flavoring in the soft serve that isn't really my favorite. We got the sour apple slush in one and orange cream in the other with strawberry soft serve. Service here is a little on the slower side because it was the owner working the entire shop by himself orders and all, but he was super nice and friendly. This place would give meadowlark in Pleasanton a run for it's money for sure! I'd like to add that their pup cup sizes here are generous and my dogs loved it! When I'm in the area I'll be back! read more

Once Upon A Slush - Orange cream/strawberry and Sour Apple/strawberry $12 each. - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

If you haven't been to once upon a slush it's definitely an experience. It's really delicious the flavors change weekly. My favorite is chocolate slush and coffee slush. My husband's is vanilla ice cream with the orange or tangerine slush. read more

We were very excited to try this slush place this weekend. The older man working was incredibly rude, dismissive and came off very condescending when asked a simple question about the flavors. I didn't even order an item for myself after as he made the whole experience uncomfortable. He needs to work on his customer service. I am honestly surprised they have such good reviews, will not be going back. read more

Thanks to Yelp Elite Jamie C's review, I got the orange slush and chocolate soft serve combo and it was very yummy! The flavor combination was excellent, but I also enjoyed each flavor on its own. I got the regular size which was very generous, good for sharing. Service was fast and friendly, and we enjoyed sitting outside at the nearby plaza to listen to live music on a Sunday afternoon. read more

Once Upon A Slush - Regular chocolate soft serve and orange slush combo - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

Solid slushie and soft serve ice cream place. I think it would be more helpful to customers if they list out some pre-selected combos of slushie/soft serve + sprinkles + syrup, etc. because there were multiple times I heard people be surprised by what someone else was able to order after they had already placed or received their own order. Ambiance was clean and service seemed busy, but the wait wasn't that long. I had the soft serve ice cream and it was just okay. Another member of my party ordered a soft serve fruit flavor and we noted that it didn't actually taste all that much like the flavor she ordered. All in all, I feel like the place is very reasonable, but not something I'd go out of my way to visit if I'm looking for some sweets. read more

Once Upon A Slush is a small cute shop hidden in a little courtyard. It serves, slushies, Strauss organic soft serve, coffee drinks, hot dogs, popcorn, soup, chilli, and grilled cheese sandwiches. The slushies and soft serve are the stars of Once Upon A Slush. You can even make combos or shakes of a slushy & soft serve. There are five tables for indoor seating, and two tables for outdoor seating. I came here after my husband noticed a lot of young people coming out of Once Upon A Slush. We were curious about what everyone was eating from there so we wandered in. Like a lot of customers, we ordered a combo of a slushy & a soft serve. We chose a combo of mango slushy & caramel soft serve. It was served in alternating layers of slushy and soft serve which was nice to get the change after a few bites. It was delicious and refreshing for a warm day. The mango slushy was sweet, soft, and had a lot of mango flavor. The caramel soft serve was creamy & sweet. The owner, Dave, was friendly and was a one man show. He took the orders, made the products, and served the orders. He was quick though. Once Upon A Slush is a cozy little place where one can gather with friends for coffee, slushies, soft serve, and snacks. Or just take it to go. The special treats from Once Upon A Slush are delicious and we will be back, read more

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Great dessert spot in downtown Petaluma! I love walking here after a nice dinner out, it's such a fun treat. The inside is small but decorated with a cute fantasy theme, and the people working are always so friendly! Although it is located in the American Alley, so the surrounding area isn't the nicest, but I personally like to take it over to the edge of the river and enjoy it there! The four of us ordered a couple different things! I ordered a small combo with root beer soft serve and cherry slush. One thing I will note is that the depending on what flavor slush you get, it can be a little flavorless. Finding one that is good can take a little bit of trial and error! Personally, I like the cherry slush with a select few soft serve options. The root beer was very good! One of my friends ordered a kids sized combo with chocolate soft serve and orange slush. Such a delicious combination if you like orange and chocolate! It tasted just like a Jaffa Cake. The orange is also one of the better slush flavors. Another one of my friends got a kids sized toasted marshmallow soft serve with root beer slush. This tasted just like a root beer float, and will probably be my new favorite order from there! It was so yummy. The fourth friend ordered a small banana soft serve, and it tasted exactly like a banana laffy taffy (if you're into that)! Not my personal favorite but worth a try. Overall I would absolutely recommend trying this Petaluma staple at least once if you're in the area! read more

Once Upon A Slush - root beer soft serve and cherry slush! - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

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We ordered dipped soft serve, then were asked what size and I said a regular thinking it would be in a cone. However, we received 16 oz plastic cups full of soft serve with the top dipped in chocolate. Dipped soft serve is generally a cone. My opinion for the front of house, is to please ask cup or cone. Generally people don't want a 16 oz cup of soft serve with a little bit of chocolate dip on the top. read more

The slush and soft serve were so good! There were so many options to choose from, I will definitely be coming back read more

Once Upon A Slush - Orange Cream slush with Vanilla Soft Serve and a Shirley Temple Slush with Fruity Cereal Soft Serve - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

This is an orange frozen confection with soft serve vanilla. The shop is a very small with a cool location. Never had anything like it and the quality is sensational. Many flavors of soft serve and frozen confection that can be combined all sorts of ways. The density and taste are perfect. My granddaughter and I loved it! We're going to take Dave (the owner) a copy of his place with the flying unicorn. read more

Once Upon A Slush - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

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Amazing slushy I had a mango flavor it was yummy just the right sweetness and the ice did not melt right away it's perfect for a summer heat and cool for the winter too read more

Soo good!!! So many flavors to pick from!! The kids will love on a hot day or just for a sweet snack! read more

Once Upon A Slush - Cherry vanilla and mango strawberry - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

This place was so fun! Formerly a Wicked Slush (if you're familiar). Dave helped us and was the most amazing host. He had us try so many samples and they were all amazing. Can't wait to go back! read more

Once Upon A Slush - Slush and soft serve w lotsa toppings! - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

A small ice cream and soft serve store in Petaluma. The location is a bit difficult to find it's in an alleyway. The place was pretty packed but the wait was around 5 minutes. We got the small combo and child soft serve. The child size was perfect for me the cup sizes are pretty large despite the name. The soft serve was creamy and delicious. The flavor wasn't too milky or creamy just the right taste. Definitely a place to check out! read more

Once Upon A Slush - Vanilla soft serve - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

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In an alleyway off the Main Street in downtown Petaluma, we have once upon a slush. Mango ice and vanilla soft serve is my go to combo! They have like 5 sizes, but unless you're sharing I feel like a kids or regular is good enough for one person. They let you sample their 10+ flavors for those who are indecisive. read more

Delightful and wide variety of flavors! Delicious and icy cold. Great service. Refreshing as heck. We got the sour blue raspberry slushy with whipped cream. Next time we will get the orange cream :-) read more

I have to start with the people who work here first, they are SO NICE! Very friendly and welcoming! I am new to the whole icey and ice cream mix combos. But I went with sour blue razz and vanilla ice cream and I have to say... it was great!! I loved it! I went with a friend and they got churro and brown sugar cinnamon she was very happy with her choice too! read more

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Ordered two different flavors - one was smooth and delicious but for some reason the other was an icy consistency and simply not enjoyable. Service was great. The counter person was super friendly and helpful. read more

The owner of this place should not be in customer service! He's rude and combative with customers and resents having to serve the public. I also feel sorry for the employees having to work for him. This was the worst customer service experience I've had in Petaluma. Go to any other ice cream establishment in the area for a better experience. Skip this place altogether. read more

This treat store is not easy to find if you are not familiar with the area. Using Google Map took us to an alley that our car could not get in. Then, we remembered that there is a public parking garage a couple blocks away. So, we parked there and walked to find this place. We were greeted by the owner. The place was well decorated and felt like a fun place to hang around; especially for kids. There were many things, including boards on the wall that the kids could play / write on / decorate. Then, of course, the sweet treats. There were many options, different ingredients/toppings, to mix and match. It is a fun activity just to choose and build our own treats. Get the creative juice flows, enjoy the yummy treats, and spend that quality parents-children time read more

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got the toasted marshmallow soft serve and cotton candy slush, it was really good i would recommend. i was with 6 other people and all but one of them enjoyed what they ordered. the guy that works there (i'm assuming the owner) was pretty rude and impatient, thats the only thing that would deter me from going back. read more

Once Upon A Slush - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

These treats are so good that my kid won't stop talking about them- and we just grabbed one while we were passing through! Like shave ice but better. Wish you were here in SoCal :( read more

After seeing this cute spot on Localish I was determined to try it if I ever found myself in town...and it was so worth the wait. The cherry slush with chocolate-vanilla soft serve was the perfect combination! read more

Great people. Great slush. Great Frozen Yogurt... WHAT MORE COULD YOU ASK FOR? Kid friendly! And white boards everywhere to draw and allow your inner artist to come out! read more

Once Upon A Slush - My toddler slurping up the rest of his slush/frozen yogurt - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

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Came by for the first time last weekend with my fiancé. The girl helping us was really nice, funny, and helpful explaining the menu. I ended up getting a combo of star berry slush and vanilla soft serve. It was really good! My fiancé just got a small toasted marshmallow soft serve, which surprisingly was really good. I feel like most toasted marshmallow flavored anything is too sweet but this was the perfect sweetness. We sat at their outdoor seating which was tucked in an art covered ally way. Nice little stop in Petaluma, we just love the whole area :) read more

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First time popping into this spot and it is a great hidden gem! Reminds me of Amy's wicked slush. The flavors are great! Hope they stay open for years to come!!! read more

Yummy! Very friendly service from the young latina girl with the dry hair. Would eat again.

Delicious soft serve ice cream from Straus Cremery, friendly service and real ice cream pup cups! Sit there or eat in the shady plaza outside. read more

Super nice people, slushes were amazing. Generous portions as well. Must experience while in Petaluma.

I wait all year for the peppermint soft serve and it literally makes me dance for joy. Hubby got a rootbeer float and he was so happy. We tried to split the hotdog but it was very overcooked. No worries we had ice cream!!! read more

Once Upon A Slush - Rootbeer float and peppermint ice cream! Yum! - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

This place has three BEST soft serve I've ever had, I am not exaggerating. Made by Straus. So creamy...like a dream. I had the chocolate, and I can't stop thinking about it. I ordered as small and it was much larger than I expected and thought, no way I'll finish more than half. But I couldn't stop eating it and finished, feeling guilty by the end. Worth every calorie. Can't wait to return for another. read more

this place is actually so cute, the prices are good, so many options to choose from, and the man who own the shop is so accommodating and kind. every time i'm there i feel so welcome and the treats are delicious read more

My husband and I enjoyed our experience here today. We both got a small Italian ice/ soft serve combo. The staff was very helpful, describing their product and the ordering options. My husband got the orange cream ice and vanilla soft serve and I got the salted caramel ice and chocolate soft serve. They were both delicious and very refreshing. The Italian ices are very smooth and robust in flavor. We both got a small which is a very generous helping. The soft serve is ice cream, not frozen yogurt, and is made with top notch ingredients by Straus. They offer several choices in flavors as well. There are tables enabling you to eat inside or on a nice day you can enjoy the outdoors in the Putnam plaza. Once Upon a Slush will definitely be our first choice now when we want to get a delicious and unique frozen treat. read more

Once Upon A Slush - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

Even though there a lot of flavors, I got their vanilla and chocolate twist and it was good quality ice cream. Very smooth, refreshing and stays firm. read more

Once Upon A Slush - Vanilla and chocolate twist soft serve - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

This place was fantastic! When I imagine slushee, I think of watered down flavored ice. This place blew our expectations! They had so many slushee flavors and you get to mix it with delicious Straus frozen yogurt. The combination was amazing!! We highly recommend. We ordered the kids size and it was more than enough. read more

Once Upon A Slush - Ice Cream & Frozen Yogurt Near Me - Petaluma, California

cannot recommend this place enough!!! the kids size seems small but is plenty big enough for an adult too

Rude slovenly disheveled owner overpriced average soft serve The customer is always right doesn't Doesn't apply here . I ordered 2 small soft serve cones one with sprinkles Total $24 dollars! Before giving me the cones he says to me "the waffle cones are extra ! " To which I replied; You're telling me I'm Paying $24 Dollars for 2 cones with one sprinkles and the waffle option is extra ! He took the cones away to and then proceeded to the register to charge us the extra price for the waffle cones He then see's that I was overcharged for a larger size then we ordered. He made the correction and not once as a customer courtesy did he apologize for his errors. The good news is with rude unappreciative owners/managers this type of business will soon be out of business thanks to them. So much for community owners .... Bullshit.. read more

This is a GREAT & favorite local spot that has dairy-free desserts that are cheap and leave me feeling content without the guilt of too much sugar. Dave (the owner) is often the one taking orders, and he's great. He has patience for any new customer wanting to figure the whole "slush/icecream" thing out. Samples are allowed, and thanks to Dave I have a current favorite slush: mango & strawberry. Dave is super personable and always makes my toddler feel welcomed, seen and appreciated. He calls my son by name and we only frequent once a month; this means the world to me. I love that the store also has whiteboards that anyone can write on and express their creativity with drawings or words. It adds a unique touch to the building. Lastly my advice on size... get smaller than you think. I'm an adult that likes sugar and I get the smallest slush. It's the perfect size for me. read more