Easter Cake Bars with Chocolate Buttercream Frosting

Who doesn’t love a delicious treat at Easter? Well, my kids certainly do and this yummy Easter Cake Bar is fantastically easy to make. With a chocolate buttercream frosting, it’s quick and simple and all the family loved it last year for our Easter Egg Hunt. So here you go an Easter cake bar recipe with a simple-to-make chocolate buttercream icing.

a single square of an Easter cake bar with rainbow sprinkles, chocolate buttercream frosting and mini eggs on top. around it you can see more mini eggs and some plastic easter eggs too.

Easter Cake Bars

There is nothing simpler than a sponge cake to make. It’s one of the basic recipes I have taught my kids and just that basic recipe there are some many ways that it can be adapted.

Easter Cake, a single square of a simple easter bar that you can make with mini eggs, chocolate frosting and rainbow sprinkles.

This Easter Cake Bar is cooked in a square pan, frosted with a simple and easy buttercream icing flavoured with chocolate, and finished off with some of my favourite mini eggs.

Slices of Easter cake with rainbow sprinkles in the sponge a chocolate buttercream icing and Cadbury mini eggs on top.

It’s one of the recipes that my teens can make themselves but it’s equally fun to make alongside them or as a treat or Easter dessert. I love to serve these with our Easter Egg Blondies so that there is a couple of cake options for people to choose from.


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Close up of a single easter cake bar with mini eggs on the plate. The cake bar has rainbow sprinkles inside the sponge cake and is topped with chocolate buttercream frosting and 3 mini eggs.

Ingredients for Easy Easter Bars

  • 3 cups flour
  • 1 1/2 teaspoons baking powder
  • 1 teaspoon salt
  • 1 1/2 cups vegetable oil
  • 2 cups sugar
  • 4 eggs
  • 1 teaspoon vanilla extract
  • 1 cup milk
  • 1/2 cup rainbow sprinkles

The rainbow sprinkles are optional but they really add a little special something to the cake bars so I would definitely keep them in.

Why not buy 2 packets of chocolate mini eggs and make our delicious Easter Cheesecake Dessert as well.

Ingredients for the Chocolate Buttercream Frosting

  • 1 cup unsalted butter
  • 2 1/4 cups powdered sugar
  • 1/3 cup unsweetened cocoa powder
  • 1 teaspoon vanilla extract
  • 2 tablespoons milk
  • Chocolate eggs for decorating.

How to Make Easter Cake Bars

1. Preheat oven to 350 degrees and grease a 9×13 pan with nonstick cooking spray.

dry ingredients for making easter cake in a bowl

2. In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.

liquid ingredients for cake bars

3. In a separate bowl, beat together the vegetable oil, sugar eggs, and vanilla until well combined.

making easter cake batter in a bowl

4. Add the flour mixture and beat to combine, then add the milk and beat until mixed.

rainbow sprinkles in with cake batter ready to fold in.

5. Fold in the rainbow sprinkles.

6. Spread the mixture evenly across the pan and bake for 35 to 40 minutes.

7. Allow the cake to cool completely before frosting

How to Make Chocolate Buttercream Icing

1. In a medium bowl beat the unsalted butter till smooth with a little milk and vanilla extract.

ingredients for making buttercream frosting flavored with cocoa in a bowl

2. Mix the powdered sugar and cocoa powder together.

3. Add the cocoa and sugar mix a little at a time to your bowl with the butter and beat together till a smooth buttercream frosting is achieved.

Chocolate frosting spread on a cake in a pan

4. Then spread the frosting evenly over the top of the cake, then cut it into bars.

top down view of mini eggs placed on top of squares of chocolate frosted sponge cake for Easter

5. Top each bar with chocolate eggs before serving.

Yield: 20 Nars

Easter Cake Bars with Chocolate Buttercream Frosting

6 squares of an Easter Cake Bar on a wooden board, the sponge is filled with rainbow spinkles and on top there is a buttercream frosting and Cadbury mini eggs.

A simple and easy recipe to make a delicious sprinkle-filled cake bar for Easter with a chocolate buttercream frosting and mini eggs. A perfect Easter Treat for the whole family.

Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour

Ingredients

  • 3 cups flour
  • 1Cake Bar Ingredients
  • 1 1/2 teaspoons baking powder
  • 1 teaspoon salt
  • 1 1/2 cups vegetable oil
  • 2 cups sugar
  • 4 eggs
  • 1 teaspoon vanilla extract
  • 1 cup milk
  • 1/2 cup rainbow sprinkles

Frosting Ingredients

  • 1 cup butter
  • 2 1/4 cups powdered sugar
  • 1/3 cup unsweetened cocoa powder
  • 1 teaspoon vanilla extract
  • 2 tablespoons milk
  • Chocolate mini eggs for decorating.

Instructions

  1. Preheat oven to 350 degrees and grease a 9x13 pan with nonstick cooking spray.
  2. In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
  3. In a separate bowl, beat together the vegetable oil, sugar eggs, and vanilla until well combined.
  4. Add the flour mixture and beat to combine, then add the milk and beat until mixed.
  5. Fold in the rainbow sprinkles.
  6. Spread the mixture evenly across the pan and bake for 35 to 40 minutes.
  7. Allow the cake to cool completely, then prepare the icing by beating together the frosting ingredients until smooth.
  8. Spread the frosting evenly over the top of the cake, then cut it into bars.
  9. Top each bar with chocolate eggs before serving.



Nutrition Information:

Yield:

22

Serving Size:

1

Amount Per Serving: Calories: 429Total Fat: 26gSaturated Fat: 7gTrans Fat: 1gUnsaturated Fat: 17gCholesterol: 57mgSodium: 215mgCarbohydrates: 47gFiber: 1gSugar: 32gProtein: 4g

Did you make this recipe and loved it?

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More Delicious Treats for Easter

a plate of easter egg shaped sugar cookies with pink frosting ready to be shared
cute cupcakes with a orange candy coated strawberry for a carrot stuck in chocolate buttercream frosting with a sprinkle of chocolate cookie crumbs to look like a carrot patch ideal for easter parties and treats
A slice of mini egg cheesecake for Easter on a white plate, there are plastic Easter eggs around it and the pie dish with the rest of the Easter Cheesecake in the back corner.
Pinterest image for a simple recipe for Easter Cake Bars

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