Gluten-Free Blueberry Breakfast Cake

This moist, buttery blueberry cake with a zing of lemon is utterly divine! It uses gluten-free all-purpose flour, so you don’t have to keep a stock of gluten-free flours in your pantry.

Serves: 9Hands-on: 15 minutesTotal: 1 hour 10 minutesDifficulty: Easy

Serves: 9


  • 1⁄2 cup unsalted butter, room temperature
  • 3⁄4 cup granulated sugar, plus 1 Tbsp. for topping
  • 1 tsp. lemon zest
  • 1 large egg, room temperature
  • 1 tsp. vanilla extract
  • 2 cups gluten-free all-purpose flour
  • 1 tsp. xanthan gum
  • 2 tsp. baking powder
  • 1 tsp. salt
  • 1⁄2 cup buttermilk
  • 2 cups frozen Maine blueberries, thawed
  • 2 Tbsp. powdered sugar


  • Preheat oven to 350°F. Grease an 8-by-8-inch square pan with butter.
  • In a large mixing bowl, cream the butter and sugar until light and fluffy. Add the lemon zest, egg, and vanilla and beat for 1 minute.
  • In a separate bowl, combine the flour, xanthan gum, baking powder, and salt.
  • Add the dry ingredients to the wet ingredients alternately with the buttermilk, beginning and ending with the flour mixture. The batter will be thick.
  • Gently fold in the blueberries. Pour into the prepared pan and bake for 40 to 50 minutes or until a toothpick inserted in the center comes out clean. Let cool slightly, then dust with powdered sugar.