This easy coffee cake is filled with blueberries and is topped with a delightfully sweet streusel topping.

Fresh or frozen blueberries work well.

Try swapping out the blueberries for fresh or frozen raspberries for an equally delicious twist.

a recipe photo of the Lemon-Blueberry Coffee Cake

Photo:Photographer: Jennifer Causey, Food Stylist: Julian Hensarling, Prop Stylist: Christina Daley

Coat an 8-inch-square baking pan with baking spray.

Refrigerate, uncovered, until ready to use.

Beat in egg until just combined.

the ingredients to make the Lemon-Blueberry Coffee Cake

Photographer: Jennifer Causey, Food Stylist: Julian Hensarling, Prop Stylist: Christina Daley

Beat just until combined after each addition.

Fold in blueberries, lemon zest and vanilla until evenly incorporated.

(The batter will be thick.)

a step in making the Lemon-Blueberry Coffee Cake

Photographer: Jennifer Causey, Food Stylist: Julian Hensarling, Prop Stylist: Christina Daley

Spoon the batter into the prepared baking pan, spreading evenly.

Sprinkle with the streusel, pressing gently to adhere.

Bake until a wooden pick inserted in the center comes out clean, 45 to 50 minutes.

a step in making the Lemon-Blueberry Coffee Cake

Photographer: Jennifer Causey, Food Stylist: Julian Hensarling, Prop Stylist: Christina Daley

Let cool slightly on a wire rack, about 30 minutes.

Cut into 12 pieces and serve.

To make ahead

Store cake in an airtight container at room temperature for up to 3 days.

a step in making the Lemon-Blueberry Coffee Cake

Photographer: Jennifer Causey, Food Stylist: Julian Hensarling, Prop Stylist: Christina Daley