Get ready for the Fourth of July and Bake a Cake: Root Beer Float Cake with Cream Cheese Frosting! Easy and delicious!

Piece of Root Beer Cake with Frosting

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Happy Weekend! Watch the video below to make a delicious Root Beer FLOAT cake, and get your space decorated in red, white and blue! You may also want to bake this festive Summer Fruit Upside Down Cake.

Start looking for yummy recipes, or gathering recipes from Pinterest or digging up the family favorites. (Are you following my Fourth of July Entertaining & Recipes board, or my Summer Entertaining & Recipes board?)

piece of root beer cake

Bake a Cake: Root Beer Float Cake

A few years ago we hosted friends for dessert, enjoying our new backyard space in the cool of the evening. We served this fabulous Root Beer Float Cake!

Root Beer Float Cake with Cream Cheese Frosting

All you need are these ingredients for this cake:

  • white cake mix
  • root beer
  • canola oil
  • eggs
  • (extract) root beer
  • powdered sugar
  • cream cheese
  • butter, softened
  • vanilla extract

Root Beer Float Cake

Root Beer Float Cake

Having it decorated for the 4th of July, all I had to do was bake a cake!

I decided to use a root beer theme, and bake a cake: Root Beer Float Cake with Cream Cheese Frosting. Oh, and then serve root beer on the side for our beverage. A&W is our favorite brand.

Start with a color theme

When I decorate, no matter what the space, I like to start with a color theme.

Using the red, white, and blue 4th colors was perfect.

Root Beer Float Cake with Cream Cheese Frosting

Pulled out my blue Mexican glasses. (Recycled Harry & David gift container.)

Plenty of ice and drinks (in case someone didn’t want root beer).

Root Beer Float Cake with Cream Cheese Frosting

Napkins, plate, fresh picked berries.

Summer is a 9×13 pan

Whipped up the cake in a 9×13 pan, which brings back great childhood memories for me.

In the summer, my mom always made cakes in 9×13 pans because it seems that we were either going to the river, to a picnic, or having a summer dinner party in our backyard.

A 9×13 size pan says “summer” all over it.

This delicious Root Beer Float Cake, with a thick cream cheese frosting, which everyone loved!

What’s your favorite cake to make in a 9×13 pan?

More summer cake ideas:

Buttermilk Blueberry Cake Board

Piece of Root Beer Cake with Frosting
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Get the Recipe:

Bake a Cake: Root Beer Float Cake with Cream Cheese Frosting

This frosting recipe makes enough to frost a 9×13 cake very thickly, so use half of the recipe if you prefer less frosting. Make sure and use a premium root beer for better flavor!
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Yield: 12
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  • 1 package white cake mix, 18.25 ounces
  • 1 cup root beer
  • ¼ cup water
  • 1/2 cup canola oil
  • 3 eggs
  • 1 tsp. root beer extract, McCormicks


  • 4 cups powdered sugar
  • 1 8 ounce cream cheese, softened
  • ½ cup butter, softened
  • 1 tsp. root beer extract, McCormicks
  • 1 tsp. vanilla extract


  • Preheat oven to 350 degrees.
  • In a large bowl, combine cake mix, root beer, water, oil, extract, and eggs. Beat on low speed for 2 minutes or stir by hand for 3 minutes.
  • Pour into a greased 13×9-in. baking pan. Bake at 350° for 30-35 minutes, or until toothpick inserted comes out clean.
  • Cool completely on a wire rack.

For the frosting:

  • In a small bowl, beat the cream cheese, butter, and extracts. Gradually fold in the powdered sugar.
  • Beat until soft peaks form. Frost the cooled cake. Store in a refrigerator before serving.
Cuisine: American
Course: Dessert
Did you make this recipe?Tag @reluctantentertainer on Instagram and hashtag it #reluctantentertainer!

 Root Beer Cake with Cream Cheese Frosting