Classic Soda Float Sheet Cake

Featured in: Desserts for a Crowd

Classic soda float sheet cake brings together the sweet flavors of nostalgic soda floats in a light and airy dessert. Smooth batter made with soda and butter is baked to tender perfection, then topped with fluffy, soda-infused frosting. Finishing touches such as maraschino cherries, rainbow sprinkles, and whipped cream deliver retro fun. The straightforward mixing method makes preparation easy, while simple pantry ingredients and a single pan speed up cleanup. Enjoy a slice that’s soft, creamy, and bursting with soda-shop memories.

Updated on Thu, 30 Oct 2025 12:02:00 GMT
Classic Soda Float Sheet Cake topped with creamy frosting and colorful sprinkles.  Save It
Classic Soda Float Sheet Cake topped with creamy frosting and colorful sprinkles. | zetluna.com

A nostalgic sheet cake inspired by the flavors of a classic ice cream soda float, combining a light, airy cake with a creamy soda-flavored frosting.

This recipe instantly brought back childhood memories of sharing soda floats with friends at summer parties. Creating it felt like revisiting old favorites in a fun, new way.

Ingredients

  • All-purpose flour: 2 1/2 cups (315 g)
  • Granulated sugar: 1 1/2 cups (300 g)
  • Baking powder: 2 tsp
  • Baking soda: 1/2 tsp
  • Fine salt: 1/2 tsp
  • Soda (cream soda or root beer, chilled and flat): 1 cup (240 ml)
  • Unsalted butter, melted and cooled: 3/4 cup (170 g)
  • Large eggs, at room temperature: 3
  • Vanilla extract: 2 tsp
  • Unsalted butter, softened (for frosting): 1/2 cup (115 g)
  • Powdered sugar, sifted: 3 cups (360 g)
  • Soda (same as for cake, chilled and flat): 1/4 cup (60 ml)
  • Heavy cream: 1/4 cup (60 ml)
  • Vanilla extract (for frosting): 1/2 tsp
  • Pinch of salt (for frosting):
  • Maraschino cherries (optional topping):
  • Rainbow sprinkles (optional topping):
  • Whipped cream (optional topping):

Instructions

Prep the pan:
Preheat the oven to 350°F (175°C). Grease and line a 9x13-inch (23x33 cm) sheet pan with parchment paper.
Mix dry ingredients:
In a large bowl, whisk together flour, sugar, baking powder, baking soda, and salt.
Mix wet ingredients:
In a separate bowl, whisk together soda, melted butter, eggs, and vanilla extract until well combined.
Combine batters:
Add the wet ingredients to the dry ingredients and mix gently until just combined. Do not overmix.
Bake the cake:
Pour the batter into the prepared pan and smooth the top. Bake for 28–32 minutes, or until a toothpick inserted in the center comes out clean. Cool the cake completely in the pan on a wire rack.
Make the frosting:
Beat the softened butter until creamy, then gradually add powdered sugar. Mix in soda, heavy cream, vanilla, and salt. Beat until light and fluffy.
Frost the cake:
Spread the frosting evenly over the cooled cake. Garnish with maraschino cherries, sprinkles, and dollops of whipped cream, if desired. Slice and serve.
Delicious Classic Soda Float Sheet Cake served with whipped cream and cherries.  Save It
Delicious Classic Soda Float Sheet Cake served with whipped cream and cherries. | zetluna.com

My family loves finishing this cake together after a backyard dinner, each picking their favorite toppings to create the ultimate float experience.

Required Tools

You'll need a 9x13-inch (23x33 cm) sheet pan, mixing bowls, whisk, electric mixer for frosting, and spatula for spreading.

Allergen Information

Contains wheat, eggs, and dairy. Check soda and toppings for allergens if using different brands.

Nutritional Information

Each serving is about 390 calories with 17 g total fat, 58 g carbohydrates, and 4 g protein.

Mouthwatering Classic Soda Float Sheet Cake drizzled with soda-flavored icing and sprinkles. Save It
Mouthwatering Classic Soda Float Sheet Cake drizzled with soda-flavored icing and sprinkles. | zetluna.com

This sheet cake is the perfect treat for birthdays or casual gatherings. Enjoy a slice and savor sweet soda nostalgia.

Common Questions About Recipes

Which type of soda is best to use?

Cream soda or root beer work well, providing sweet and distinctive float flavors.

Can I substitute butter for oil?

Butter gives rich flavor and moist texture. Oil can be used, but the taste will differ.

Is the soda supposed to be flat?

Yes, let the soda go flat before mixing. This prevents excess bubbles in the batter.

How do I make the frosting fluffy?

Beat softened butter first, then add sugar and liquids gradually. Whip until light and creamy.

How should leftovers be stored?

Keep sheet cake covered at room temperature for up to two days to maintain freshness.

Can I add other toppings?

Absolutely! Try crushed nuts, mini marshmallows, or shaved chocolate for extra flair.

Classic Soda Float Sheet Cake

Light, flavorful cake with creamy soda frosting. Maraschino cherries and sprinkles add playful nostalgia.

Prep Time
20 mins
Time to Cook
30 mins
Overall Time
50 mins
Authored by Clara

Recipe Type Desserts for a Crowd

Skill Level Required Easy

Cuisine Type American

Recipe Output 12 Number of Portions

Dietary Needs Veggie-Friendly

The Ingredients You'll Need

Dry Ingredients

01 2 1/2 cups all-purpose flour
02 1 1/2 cups granulated sugar
03 2 teaspoons baking powder
04 1/2 teaspoon baking soda
05 1/2 teaspoon fine salt

Wet Ingredients

01 1 cup cream soda or root beer, chilled and flat
02 3/4 cup unsalted butter, melted and cooled
03 3 large eggs, at room temperature
04 2 teaspoons vanilla extract

Frosting

01 1/2 cup unsalted butter, softened
02 3 cups powdered sugar, sifted
03 1/4 cup cream soda or root beer, chilled and flat
04 1/4 cup heavy cream
05 1/2 teaspoon vanilla extract
06 Pinch of salt

Optional Toppings

01 Maraschino cherries
02 Rainbow sprinkles
03 Whipped cream

Step-by-Step Instructions

Step 01

Prepare Oven and Pan: Preheat oven to 350°F. Grease and line a 9x13-inch sheet pan with parchment paper.

Step 02

Combine Dry Ingredients: Whisk together the flour, granulated sugar, baking powder, baking soda, and salt in a large mixing bowl.

Step 03

Blend Wet Ingredients: In a separate bowl, whisk cream soda or root beer, melted unsalted butter, eggs, and vanilla extract until well combined.

Step 04

Mix Cake Batter: Gently fold the wet ingredients into the dry mixture, stirring until just combined. Avoid overmixing.

Step 05

Transfer and Bake: Pour batter into the prepared pan and smooth the top. Bake for 28 to 32 minutes, or until a toothpick inserted in the center comes out clean.

Step 06

Cool Cake: Place the pan on a wire rack and allow the cake to cool completely before frosting.

Step 07

Prepare Frosting: In a mixing bowl, beat softened butter until creamy. Gradually add powdered sugar, then blend in cream soda or root beer, heavy cream, vanilla extract, and a pinch of salt. Beat until light and fluffy.

Step 08

Frost Cake: Spread frosting evenly over the cooled cake.

Step 09

Garnish: Decorate with maraschino cherries, rainbow sprinkles, and whipped cream as desired.

Step 10

Serve: Slice sheet cake and serve immediately.

Tools You'll Need

  • 9x13-inch sheet pan
  • Mixing bowls
  • Whisk
  • Electric mixer
  • Spatula

Allergy Information

Review each ingredient to identify allergens and consult an expert if needed.
  • Contains wheat (gluten), eggs, and dairy (butter, heavy cream, milk).
  • Verify soda and toppings ingredient list for potential allergens if using alternate brands.

Nutritional Facts (Per Serving)

Keep in mind these details are for general guidance and shouldn't replace professional advice.
  • Caloric Content: 390
  • Fats: 17 grams
  • Carbohydrates: 58 grams
  • Proteins: 4 grams