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Moist blueberry coffee cake slice with a buttery crumb topping, layers of juicy blueberries, and fresh blueberries on top, served on a plate with a fork.

Blueberry Coffee Cake

A moist and tender breakfast cake made with sour cream and fresh blueberries, topped with a crunchy cinnamon streusel.
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Course: Breakfast, Dessert
Cuisine: American
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Servings: 9 square
Calories: 380kcal
Cost: $10

Equipment

  • 1 Square Baking Pan (8x8 or 9x9 inch)
  • 1 Electric mixer (Hand or stand)
  • 2 Mixing bowls (Medium and large)

Ingredients

  • 2 cups all-purpose flour - Plus 1 tablespoon for berries
  • 2 teaspoon baking powder - Leavening
  • ½ teaspoon salt - Balance
  • ½ cup butter - Softened, for cake
  • ¾ cup granulated sugar - For cake
  • 2 large eggs - Room temperature
  • ½ cup sour cream - Full fat
  • 1 teaspoon vanilla extract - Flavor
  • 2 cups fresh blueberries - Rinsed and dried
  • ½ cup all-purpose flour - For streusel
  • cup brown sugar - Packed, for streusel
  • cup granulated sugar - For streusel
  • 1 teaspoon cinnamon - Ground
  • 4 tablespoon butter - Cold, cubed for streusel

Instructions 

  • Mix flour, sugars, and cinnamon; cut in cold butter until crumbly. Refrigerate.
  • Whisk flour, baking powder, and salt. In a separate bowl, cream butter and sugar until fluffy.
  • Add eggs, vanilla, and sour cream to butter mixture. Fold in dry ingredients.
  • Toss blueberries with 1 tablespoon flour and fold into batter. Spread in greased 9x9 pan.
  • Top with streusel. Bake at 350°F for 40-50 minutes. Cool before slicing.

Notes

Toss blueberries in a little flour before adding to the batter to prevent them from sinking. Use full-fat sour cream for the best texture.

Nutrition

Serving: 120g | Calories: 380kcal (19%) | Carbohydrates: 52g (17%) | Protein: 4g (8%) | Fat: 18g (28%) | Saturated Fat: 10g (63%) | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Cholesterol: 75mg (25%) | Sodium: 210mg (9%) | Potassium: 120mg (3%) | Fiber: 2g (8%) | Sugar: 32g (36%) | Vitamin A: 500IU (10%) | Vitamin C: 3mg (4%) | Calcium: 60mg (6%) | Iron: 1mg (6%)