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Theo’s Car Wash Birthday Cake

September 14, 2024 · In: Featured, Tutorials

I’ve decided to be the kind of mom who makes whatever my kids want when it comes to their birthday cakes, no matter how silly or random. So when my son Theo asked for a car wash cake for his birthday, I had to find a way to make it happen. He has been obsessed with the car wash for probably half of his life, so I knew this wasn’t just a flippant request. Here’s how I pulled it off in case you ever get a car wash cake request. 

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car wash birthday cake
carwash cake by sugar and sparrow

For the ribbon scrubber: I built a simple frame using wooden skewers and a popsicle stick that I glued together with a hot glue gun. Then, I used a pasta cutter to cut the ribbons out of gum paste. I chose gum paste because it dries much more firmly than fondant* and I wanted the best stability (we had to drive the cake somewhere). I draped the ribbons over the wooden frame and let the whole thing dry for a few days before using it as a cake topper. 

*Fondant would work as well, just note that it takes longer to dry and might be softer/more breakable. 

car wash birthday cake
car wash cake for kid birthday

For the spinner scrubbers: I stuck a piece of Australian licorice onto a wooden skewer, then used Wilton Tip 233 to pipe shag buttercream onto it, starting at the bottom of the licorice and working my way to the top. 

For the car: I bought a Hot Wheels car from Target. 

For the soap suds: I used Wilton Tip 5 and Tip 2 to pipe different sized bubbles all over the cake. 

Additional decorations: I accented the car wash design with SprinklePop Rainbow Road sprinkles, which are so pretty and celebratory! And then I added these candles by Meri Meri to make it a party cake. 

carwash birthday cake

You can watch a video of me making this cake on Instagram to see how it all came together. I absolutely love how it turned out and can’t wait to see what next year’s birthday cake request will be!

By: Whitney · In: Featured, Tutorials

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Comments

  1. Amy Kamber says

    August 27, 2025 at 6:34 pm

    Thank you for sharing this – I used it as inspiration to make a car wash cake for my son with special needs who loves going to the car wash!

    Reply
    • Whitney says

      August 27, 2025 at 8:21 pm

      That’s awesome, Amy! I hope he loves his cake!!

      Reply

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✨recipe linked in my bio or at https://sugarandsparrow.com/lemon-raspberry-layer-cake/
 
#lemonraspberry #lemoncake #raspberrycake #pinkcake #layercake
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✨Full recipe (including homemade salted caramel) + cake pairing suggestions are on my blog at https://sugarandsparrow.com/salted-caramel-buttercream-recipe/ 
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Yield: 2.5 Cups ⁣
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INGREDIENTS⁣
1 Cup (226g) unsalted butter, room temperature⁣
3 1/2 Cups (420g) powdered sugar⁣
2 tsp vanilla extract⁣
1/2 Cup (120ml) salted caramel sauce, room temperature⁣
Pinch of salt⁣
⁣
INSTRUCTIONS:⁣
1. In a stand mixer fitted with the paddle attachment, whip the butter on high until it’s creamy and light in color, 5-6 minutes. ⁣
2. Turn the mixer to low and add the powdered sugar a few cups at a time, scraping down the bowl and paddle after each interval.⁣
3. With the mixer still on low, mix in the vanilla extract, salted caramel, and a pinch of salt. Continue mixing on low speed until fully combined. ⁣
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#saltedcaramel #caramel #cakedecorating #frosting #buttercream
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🍦Full recipe linked in my bio or find it at https://sugarandsparrow.com/no-churn-berry-crisp-ice-cream/

#nochurnicecream #icecream #icecreamlover #berries #summerdessert
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🍓Full recipe (with strawberry buttercream) at https://sugarandsparrow.com/strawberry-sheet-cake-recipe/
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Serves 24
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INGREDIENTS⁣ 
1 Cup (12oz) fresh strawberries, pureed ⁣ 
3/4 Cup (180ml) whole milk, room temp⁣ 
2 1/2 Cups (265g) sifted cake flour⁣ 
2 tsp baking powder⁣ 
1/4 tsp baking soda⁣ 
1/2 tsp salt⁣ 
3/4 Cup (170g) unsalted butter, room temp⁣ 
1 2/3 Cups (350g) granulated sugar⁣ 
3 large eggs, room temp⁣ 
1/3 Cup (75g) sour cream, room temp⁣ 
2 tsp pure vanilla extract⁣ 
1-2 drops pink food coloring (optional)⁣ 
⁣ 
INSTRUCTIONS⁣ 
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2. Preheat the oven to 350ºF. Grease and line a 13×9 inch baking pan. 
3. In a medium bowl, whisk together the sifted cake flour, baking powder, baking soda, and salt. Set aside. ⁣ 
4. In the bowl of a stand mixer with the paddle attachment, whip the butter on high until creamy, 2 min. Add the sugar and beat with the butter until light and fluffy, 2 min. Turn the mixer to low and add the eggs one at a time. Add the vanilla and sour cream, then turn the mixer to high and beat for 1 minute.⁣ 
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Full recipe link in my bio + at https://sugarandsparrow.com/cookies-and-cream-ice-cream-cake/ 

OREO CRUST
22 Oreo cookies
5 Tbsp melted butter

ICE CREAM LAYER
2 Cups (480ml) heavy whipping cream, cold
2 tsp pure vanilla extract
14 Oz sweetened condensed milk
15 Oreo cookies, roughly chopped

TOPPINGS
12.8 Oz jar of hot fudge
Whipped cream frosting (see full recipe link)
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INSTRUCTIONS
1. Mix together the Oreo crust ingredients and pack tightly into the bottom of a 9-inch springform pan. Freeze while you make the ice cream.
2. In a chilled bowl, whip the heavy cream and vanilla to stiff peaks. Fold in the sweetened condensed milk until uniform, then fold in the chopped Oreos. Pile the ice cream on top of the Oreo crust, smooth it down, cover and freeze overnight.
3. When the ice cream layer is set, top with the hot fudge, whipped cream frosting, and more chopped Oreos. Store in the freezer until ready to serve! 

#oreocake #icecreamcake #nochurnicecream #birthdaycake #cookiesandcream

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