Zippy lemon and tart blueberries are the perfect combo for a party-friendly sheet cake.

Jessica Furniss

If you’ve never paired blueberries with lemon before, you’re in for a real treat.

This lovely cake will be the belle of the ball at any spring soiree.

Southern Living Blueberry Lemon Sheet Cake sliced on plates to serve

Credit:Jessica Furniss

Pureed berries give the frosting its naturally beautiful hue.

You’ll have a couple of teaspoons of puree left over; stir it into smoothies or yogurt.

If you’re new to decorating cakes, don’t worrythis cake doesn’t require much fuss.

Southern Living Blueberry Lemon Sheet Cake with a few pieces cut out to serve

Credit:Jessica Furniss

containers)

Frosting:

1cupfresh blueberries(from 1 [6-oz.]

container), plus more for garnish

1Tbsp.grated lemon zest

1/4tsp.water

2cups(16 oz.

)butter, softened

1(32-oz.)

Southern Living Blueberry Lemon Sheet Cake beating the butter

Credit:Jessica Furniss

pkg.powdered sugar

1/2tsp.lemon extract

Directions

Prepare the Cake:

Preheat oven to 350F.

Grease (with shortening) and flour a 15- x 10-inch jelly roll pan.

Gradually add sugar, beating until light and fluffy, about 4 minutes.

Southern Living Blueberry Lemon Sheet Cake adding the flour to the batter

Credit:Jessica Furniss

Add eggs, 1 at a time, beating just until blended after each addition.

Stir in lemon zest, lemon juice, and vanilla.

Toss together blueberries and remaining 1 tablespoon flour in a small bowl.

Southern Living Blueberry Lemon Sheet Cake tossing the blueberries with flour

Credit:Jessica Furniss

Gently fold blueberry mixture into batter.

Spread batter into prepared pan.

Cool in pan on wire rack completely, about 1 hour.

Southern Living Blueberry Lemon Sheet Cake folding the berries into the batter

Credit:Jessica Furniss

With mixer running on low speed, gradually add powdered sugar, alternately with a spoonful of blueberry mixture.

Beat until blended after each addition.

Increase speed to medium; beat until light and fluffy, about 1 minute.

Southern Living Blueberry Lemon Sheet Cake spreading the batter into the pan

Credit:Jessica Furniss

Beat in 1/2 teaspoon lemon extract.

Decorate the Cake:

Frost cake using a spatula.

Garnish with blueberries and lemon slices, if desired.

Southern Living Blueberry Lemon Sheet Cake baked in pan

Credit:Jessica Furniss

Refrigerate cake until frosting is firm, if needed.

Store any leftovers in the refrigerator.

Southern Living Blueberry Lemon Sheet Cake adding the blueberry puree to the frosting

Credit:Jessica Furniss

Southern Living Blueberry Lemon Sheet Cake adding the powdered sugar

Credit:Jessica Furniss

Southern Living Blueberry Lemon Sheet Cake whipping the frosting until fluffy

Credit:Jessica Furniss

Southern Living Blueberry Lemon Sheet Cake spreading the frosting on top of the cake

Credit:Jessica Furniss

Southern Living Blueberry Lemon Sheet Cake decorated and ready to serve

Credit:Jessica Furniss