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2000s Recipes + Menus

Blueberry Streusel Cake

Serves6
  • Active time:45 min
  • Start to finish:3 1/2 hr (includes cooling)
July 2009
We doubt you’ll have any leftovers from this homey blueberry cake crowned by a buttery, brown-sugar-sweetened streusel topping, but if you do, it will make a fabulous companion to your morning coffee. View more of our favorite recipes from this issue.

For streusel topping

  • 1 cup all-purpose flour
  • 1 tablespoon plus 1 teaspoon packed dark brown sugar
  • 1 tablespoon plus 1 teaspoon granulated sugar
  • 3/4 teaspoon cinnamon
  • 1/2 stick cold unsalted butter, cut into 1/2-inch pieces

For cake

  • 1 cup all-purpose flour
  • 1 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup sour cream
  • 3/4 teaspoon pure vanilla extract
  • 1/2 stick unsalted butter, softened
  • 3/4 cup granulated sugar
  • 1 large egg
  • 1/2 lb blueberries (3 1/4 cups)
  • Accompaniment:

    sweetened whipped cream
  • Preheat oven to 350°F with rack in middle. Line bottom and sides of a 9-inch square baking pan with heavy-duty foil, leaving an overhang on 2 sides. Butter bottom and sides of pan, then dust with flour, knocking out excess.

Make streusel topping:

  • Stir together flour, sugars, cinnamon, and a pinch of salt in a large bowl. Blend in butter with your fingertips or a pastry blender until mixture forms large clumps.

Make cake:

  • Whisk together flour, baking powder, baking soda, and salt in a bowl.
  • Stir together sour cream and vanilla in a small bowl.
  • Beat together butter and sugar in a large bowl with an electric mixer at medium-high speed until pale and fluffy, about 5 minutes. Add egg and beat until well blended.
  • At low speed, mix in flour mixture in 3 batches, alternating with sour-cream mixture and mixing until just combined.
  • Gently fold in blueberries.
  • Spoon batter into pan, smoothing top (preferably with an offset spatula). Crumble half of topping evenly over batter.
  • Bake 25 minutes, then remove from oven and crumble remaining topping evenly over cake. Bake until a wooden pick inserted into center comes out clean, about 25 minutes more. Cool in pan 10 minutes. Lift out cake using foil and cool completely on rack.
Cooks’ note:
  • Cake can be made 1 day ahead and kept, well wrapped in plastic wrap, at room temperature.