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Classic Old-Fashioned Blueberry Buckle Coffee Cake

blueberry buckle coffee cake - featured image

A warm, sweet, and crumbly blueberry buckle coffee cake with a tender crumb and crunchy cinnamon-spiced streusel topping, perfect for breakfast or brunch.

Ingredients

Scale
  • 2 cups (240 g) all-purpose flour
  • 1 cup (200 g) granulated sugar
  • 2 teaspoons baking powder
  • ½ teaspoon salt
  • 1 teaspoon ground cinnamon
  • ½ cup (113 g) unsalted butter, softened
  • 2 large eggs, room temperature
  • ½ cup (120 ml) milk, whole or 2%
  • 1 teaspoon vanilla extract
  • 2 cups (about 300 g) fresh or frozen blueberries (do not thaw if frozen)
  • For the streusel topping:
  • ½ cup (60 g) all-purpose flour
  • ½ cup (100 g) granulated sugar
  • ½ teaspoon ground cinnamon
  • ¼ cup (57 g) unsalted butter, cold and cut into cubes

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×9-inch (23×23 cm) baking pan with butter or nonstick spray and lightly dust with flour.
  2. In a large bowl, whisk together 2 cups flour, 1 cup sugar, 2 teaspoons baking powder, ½ teaspoon salt, and 1 teaspoon cinnamon.
  3. In a separate bowl, beat ½ cup softened butter with 2 eggs until light and fluffy, about 2-3 minutes.
  4. Gradually add the dry ingredients to the butter and eggs, alternating with ½ cup milk and 1 teaspoon vanilla extract, starting and ending with dry ingredients. Stir gently until just combined.
  5. Gently fold in 2 cups blueberries using a rubber spatula, being careful not to break them.
  6. In a small bowl, mix ½ cup flour, ½ cup sugar, and ½ teaspoon cinnamon. Cut in ¼ cup cold butter until mixture resembles coarse crumbs.
  7. Pour batter into prepared pan and spread evenly. Sprinkle streusel topping generously over batter.
  8. Bake for 45-50 minutes or until a toothpick inserted near the center comes out clean. Tent with foil if topping browns too fast.
  9. Cool in pan on a wire rack for at least 15 minutes before slicing and serving.

Notes

If topping browns too quickly, tent cake with foil halfway through baking. Use cold butter for streusel topping for best crumbly texture. Gently fold in blueberries to keep them intact. For gluten-free, use 1-to-1 gluten-free baking blend. For vegan, substitute dairy-free butter, plant milk, and flax eggs.

Nutrition

Keywords: blueberry buckle, coffee cake, breakfast, brunch, streusel topping, easy recipe, homemade, old-fashioned