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lightened blueberry coffeecake
Print Recipe
4.96 from 50 votes

My Best Blueberry Coffee Cake

Prep Time40 mins
Cook Time50 mins
Total Time1 hr 30 mins
Course: Breakfast
Author: Susan Pridmore


Streusel Topping

  • ¼ cup all-purpose flour
  • ¼ cup oats
  • ¼ cup coconut sugar or brown sugar
  • ¼ cup unsalted butter softened
  • ½ teaspoon ground cinnamon or split with ground cardamom

Coffee Cake

  • ¼ cup unsalted butter softened
  • 1 tablespoon coconut oil
  • ½ cup sugar
  • 2 large eggs separated
  • 1 teaspoon vanilla extract
  • 2 cups minus 2 tablespoon all-purpose flour
  • ½ teaspoon baking soda
  • ¾ teaspoon baking powder
  • ¼ teaspoon kosher salt
  • zest from 1 lemon
  • 1 cup buttermilk
  • 1 tablespoon yogurt
  • 1 cup blueberries
  • ½ cup apricots or more blueberries


  • Preheat oven to 350˚F, convection. Butter a 9-inch square pan or a 9-inch springform cake pan.

Streusel Topping

  • In a small bowl, mix Streusel Topping ingredients together with a fork or pastry cutter until combined.

Coffee Cake

  • Beat the butter, oil, and sugar in the mixing bowl of a standing mixer fitted with the paddle attachment until fluffy. Beat in the egg yolks and vanilla extract.
  • In a separate bowl, combine flour, baking soda, baking powder, salt and lemon zest. In a small bowl, mix together the buttermilk and yogurt.
  • Mix the dry ingredients into the butter and egg mixture alternately with the buttermilk, stirring just until combined. I use the lowest speed of the mixer. The batter will be thick.
  • Add the blueberries and apricots and fold them into the batter using a rubber spatula.
  • Whip the egg whites to a moderate peak using a hand mixer (the peaks should droop a little when you scoop the whipped egg whites with the beater and turn the beaters upside down). Fold the whipped egg whites into the batter in thirds using a rubber spatula. Little pieces of egg white should be visible in the batter. You don't want to fold them in too much.
  • Pour the batter into the buttered baking pan. Sprinkle with the Streusel Topping.
  • Bake for 50 minutes or until a toothpick inserted in the center comes out clean. Cool on a rack for 15 minutes before serving. This coffee cake is great warm or room temperature.