Old Fashioned Root Beer Float Cake Recipe

Name: Old Fashioned Root Beer Float Cake
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 cup butter; 2 cups granulated sugar; 3 cups cake flour; 1 1/2 tablespoons baking powder; 1/2 teaspoon salt; 3 1/2 teaspoons water; 4 eggs; 1 tablespoon root beer extract; 1 teaspoon vanilla extract; 1 cup milk; 7 1/2 cups confectioners' sugar; 2 1/2 cups butter; 3 to 5 tablespoons heavy cream; 3 teaspoons vanilla extract; Equipment: 12 elbow straws and colored streamers

Servings: persons

1 cup butter
2 cups granulated sugar
3 cups cake flour
1 1/2 tablespoons baking powder
1/2 teaspoon salt
3 1/2 teaspoons water
4 eggs
1 tablespoon root beer extract
1 teaspoon vanilla extract
1 cup milk
7 1/2 cups confectioners' sugar
2 1/2 cups butter
3 to 5 tablespoons heavy cream
3 teaspoons vanilla extract
Equipment: 12 elbow straws and colored streamers

1
Make the Cake: Preheat oven to 350 degrees F. Grease and flour 2 (9-inch) cake pans and line the bottoms with parchment paper.
2
In a large mixing bowl, cream the butter; then add the sugar and continue mixing until light and fluffy.
3
Meanwhile, sift together the cake flour, baking powder, and salt.
4
With the mixer on low speed, gradually add the water and eggs to the butter mixture until blended.
5
Mix in the root beer extract and vanilla.
6
Alternately add the flour mixture and milk to form a smooth batter.
7
Pour the batter into the prepared pans and bake until just set, about 30 to 40 minutes.
8
Let cool in pans for 5 minutes, and then invert onto cooling racks to cool completely before frosting.
9
Make the Frosting: In a standing mixer fitted with the whisk attachment, combine the confectioners' sugar and butter.
10
Mix on low speed until well blended; then increase speed to medium and beat for another 3 minutes.
11
Add the cream and vanilla and continue to beat on medium speed for 1 minute more, adding more cream if needed to reach spreading consistency.
12
To decorate the cake: Place 1 cooled cake layer on a cake stand, frost the top surface, and chill for 15 minutes (or freeze 5 minutes).
13
Place the second cake layer on top, inverting it to create a flat top, and push down on it slightly.
14
Frost the sides and top with a thin layer of frosting to hold in any crumbs (called a crumb layer), and chill 30 minutes or freeze 15 minutes.
15
Apply a second layer of frosting to finish off the cake, swirling the frosting a bit.
16
Place 12 elbow straws in the cake around the top, and place colored streamers around the edge of the cake flowing down to the base.

4049

kcal

Calories

201

Fat

555

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 15 ingredients. The key ingredients include: 1 cup butter, 2 cups granulated sugar, 3 cups cake flour, 1 1/2 tablespoons baking powder, and more.

Yes, Old Fashioned Root Beer Float Cake falls under the Baking & Desserts category and is a great choice for this type of meal.

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

That's it — enjoy your meal!

Old Fashioned Root Beer Float Cake

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions