This Blueberry Lemon Soda Cake has a pop of delicious lemon flavor, perfect for a quick summertime dessert. It is incredibly simple to make because it starts with cake mix, a little lemon extract, and a can of soda!  It is the perfect complement to any Memorial Day BBQ or summer event you have coming up!

Whole Blueberry Lemon Soda Cake

Blueberry Lemon Soda Cake

This is by far one of the moistest and most tender lemon cakes I have ever had, including from-scratch recipes! Of course, my secret ingredient is the lemon extract. I have made recipes for “2-ingredient” cakes and found them to not be as flavorful as I would have liked. But you will not be able to say that about this cake! Seriously lemon cake is paired with a gloriously sweet blueberry frosting in a classic and decadent flavor combination. I daresay, this is one of the best cakes I have ever baked!

Blueberry Lemon Cake with lemon extract

How to Make Lemon Soda Cake

1 box Lemon cake mix (any brand will work)

McCormick® Pure Lemon Extract

lemon-lime soda

Frosting & Toppings

blueberry buttercream recipe (below)

blueberries (a pint should do)

lemon

cake stand

1M tip with decorating bag

small offset spatula

zester

Three ingredients needed for a Blueberry Lemon Soda cake; lemon extract, cake mix, and a can of pop.

How to Make Easy Lemon Cake (3 ingredient recipe)

The directions for the cake could not be simpler!

  • Simply add lemon cake mix, 1 teaspoon McCormick® Pure Lemon Extract, and a can of room-temperature lemon-lime soda.
  • Add all ingredients together, whisk until combined, and then bake per box directions.

When ready to assemble cake:

Add one layer to the cake stand and cover with about 3/4 cup of blueberry buttercream. Cover with a layer of blueberries, then press down to make sure it’s level. Add next layer of lemon cake and then cover the entire cake with about 1 1/2 cups of blueberry buttercream using a small offset spatula. (Will be a thin coat of frosting)

Place remaining frosting in a pastry bag fitted with a 1M tip. Pipe out pretty dollops around the top of the cake.

 

Overhead view of a lemon cake covered in blueberry buttercream, blueberries, and lemon zest.

Cover each dollop with blueberry and then add lemon zest around the entire edge of the cake.

Best served at room temperature.

Blueberry Lemon Soda Cake - Slice

I can’t stress enough just how moist and delicious this cake is!

Slice of lemon layer cake with blueberry buttercream.

Easy Blueberry Buttercream

Prep Time 5 mins
Cook Time 3 mins
Total Time 8 mins
This Blueberry Lemon Soda Cake has a pop of delicious lemon flavor, perfect for a quick summertime dessert.

Ingredients

  • 1 cup (2 sticks) butter, room temperature
  • 1 tsp. McCormick® Pure Vanilla Extract
  • 4 cups confectioners' sugar
  • 1/2 cup blueberry jam (or blueberry fruit spread)

Instructions

  • Beat buttered on high with a handheld mixer or on medium-high in the bowl of stand mixer. Add in sugar, vanilla, and blueberry jam and mix until fully incorporated and creamy, about 3 minutes.

Video

Notes

EASY LEMON CAKE RECIPE:
  • Mix one box lemon cake mix, 1 teaspoon McCormick® Pure Lemon Extract, and a can of room-temperature lemon-lime soda.
  • Add all ingredients together, whisk until combined, and then bake per box directions.

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Meet Amanda Rettke

Amanda Rettke is the creator of I Am Baker, and the bestselling author of Surprise Inside Cakes: Amazing Cakes for Every Occasion – With a Little Something Extra Inside.Over the course of her 15+ year blogging adventure, she has been featured in and collaborated with the Food Network, New York Times, LA Times, Country Living Magazine, People Magazine, Epicurious, Brides, Romantic Homes, life:beautiful, Publishers Weekly, The Daily Mail, Star Tribune, The Globe and Mail, DailyCandy, YumSugar, The Knot, The Kitchn, and Parade, to name a few.

Reader Comments

  1. The recipe for the cake isn’t complete, no amounts
    The one for the frosting is ok
    But the one for the cake needs to be fixed

    1. It says a teaspoon of flavoring and a can of soda. That’s it. No other ingredients.

      A note about pudding in the mix cake mixes: never use these mixes for a soda cake. Just plain cake mixes.

      Thanks for this recipe, I can’t wait to try it. I love soda cakes.

  2. Do you still use eggs, oil, in cake mix OR do you just use dry cake mix, soda, and lemon flavoring.Thank you

  3. I love your recipes but the web page has way to many advertisements & there is often no way to print the recipes out without the advertisements covering the content. I was able to print the frosting recipe with the “print” button but no “print” button for the cake recipe.

    Is there a way to turn the advertisements off that I’m not aware of??

  4. Do you not have an actual real recipes for the cake? Is it just a list of things? I see a “real” recipe for the buttercream but not the cake. Am I missing it somewhere?

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