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Moist Blueberry Buckle Recipe with Easy Crunchy Streusel Topping

moist blueberry buckle - featured image

A nostalgic, moist blueberry buckle with a tender crumb and a crunchy, buttery streusel topping. Perfect for brunch, potlucks, or a comforting dessert.

Ingredients

Scale
  • 2 cups (250g) all-purpose flour
  • 1 ½ tsp baking powder
  • ¼ tsp salt
  • 1 tsp ground cinnamon
  • ½ cup (115g) unsalted butter, softened
  • ¾ cup (150g) granulated sugar
  • 2 large eggs, room temperature
  • 1 tsp vanilla extract
  • ¾ cup (180ml) buttermilk (or dairy-free milk with 1 tbsp lemon juice as substitute)
  • 2 cups (300g) fresh blueberries (or frozen, tossed in flour)
  • For the streusel topping:
  • ½ cup (65g) all-purpose flour
  • ⅓ cup (70g) packed brown sugar
  • ½ tsp ground cinnamon
  • ¼ cup (57g) cold unsalted butter, cubed
  • Optional: ¼ cup chopped walnuts or pecans

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×9-inch (23×23 cm) baking pan with butter or non-stick spray.
  2. In a medium bowl, whisk together 2 cups flour, 1 ½ tsp baking powder, ¼ tsp salt, and 1 tsp cinnamon. Set aside.
  3. In a large bowl, beat ½ cup softened butter with ¾ cup granulated sugar until pale and fluffy, about 3-4 minutes.
  4. Beat in 2 eggs one at a time, then add 1 tsp vanilla extract, mixing well after each addition.
  5. Add the dry flour mixture in three parts, alternating with ¾ cup buttermilk, starting and ending with dry ingredients. Fold gently after each addition; do not overmix.
  6. Fold in 2 cups blueberries carefully. If using frozen, toss them in flour first.
  7. For the streusel topping, combine ½ cup flour, ⅓ cup brown sugar, and ½ tsp cinnamon in a small bowl. Cut in ¼ cup cold cubed butter until mixture resembles coarse crumbs. Stir in nuts if using.
  8. Spread batter evenly in prepared pan. Sprinkle streusel topping generously over the batter.
  9. Bake for 40-45 minutes or until a toothpick inserted in the center comes out clean or with a few moist crumbs. Edges should be golden and topping crisp.
  10. Cool in the pan on a wire rack for at least 20 minutes before slicing.

Notes

If streusel browns too quickly, tent loosely with foil halfway through baking. Use fresh or properly thawed blueberries to avoid sogginess. Toss frozen berries in flour before folding in. Do not overmix batter to keep crumb tender. Butter should be softened for creaming and cold for streusel. Let buckle cool before slicing for cleaner cuts.

Nutrition

Keywords: blueberry buckle, streusel topping, blueberry dessert, easy blueberry recipe, moist blueberry cake, breakfast dessert, potluck dessert