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5 from 2 votes

Blueberry Lemon Breakfast Cake

Blueberry Lemon Breakfast Cake is a delicious lemon cake bursting with blueberries. It's the perfect cake for a special breakfast, brunch, or snack. This is the MOISTEST Blueberry Breakfast Lemon Cake you will ever eat!
Prep Time15 minutes
Cook Time35 minutes
Total Time50 minutes
Course: Breakfast, Dessert
Cuisine: American
Keyword: blueberries
Servings: 9
Author: Louise Rio

Ingredients

  • ½ cup unsalted butter, room temperature
  • 1 cup sugar plus 1 Tbsp to sprinkle on top
  • Zest of 1 lemon
  • 1 large egg, room temperature
  • 1 tsp pure vanilla extract
  • 2 cups all purpose flour, divided
  • 2 tsp baking powder
  • tsp kosher salt
  • Juice of ½ a lemon
  • ½ cup buttermilk
  • 2 cups fresh blueberries, washed and picked over

Instructions

  • Preheat the oven 350°F and grease a square 8-inch or 9-inch baking dish. Using a stand mixer with a paddle attachment or hand held mixer, cream the butter, sugar, and lemon zest until light and fluffy. Add the egg and vanilla extract and beat until combined.
  • In a separate small bowl, toss the blueberries with ¼ cup of flour. In another bowl, whisk together the remaining flour, baking powder, and salt.
  • Remove the bowl from the mixer and add in half the flour mixture to the batter; mix with a spatula by hand. Add all of the buttermilk and the lemon juice; stir. Add the remaining flour and stir until the flour is incorporated. Gently fold in the blueberries. (Be careful not to crush). The batter will be thick.
  • Spread the batter gently into the greased pan. Sprinkle the top with 1 Tbsp sugar and bake for 40-45 minutes; until a toothpick or paring knife inserted in the middle comes out clean.

Notes

  • Make sure when spreading the cake batter in the pan that there is a 1/2 to 1-inch space at the top for the cake to rise; otherwise use a larger dish. 
  • If using a square 9-inch pan, the baking time will be 35-40 minutes. 
  • The batter can be made the night before, covered tightly in the refrigerator, then baked in the morning. 
  • Buttermilk Substitute: Place 2 teaspoons of vinegar or lemon juice in a liquid measuring cup. Fill the cup with milk (whole milk is best) until it reaches 1/2 cup line. Let stand for 5 minutes. Use as directed.