Blueberry Sour Cream Coffee Cake

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The “Bursting Berry” Sour Cream Coffee Cake

This recipe features a heavy Cinnamon-Pecan Streusel that creates a crunchy, sugary “lid,” providing a texture contrast to the soft interior.

CategoryDetails
Prep Time20 minutes
Cook Time45–55 minutes
Total Time~1 hour 15 mins
Yield12 servings

🍴 Ingredients

The Cake:

  • 2 cups All-purpose flour
  • 1 cup Granulated sugar
  • 1 tsp Baking powder & ½ tsp Baking soda
  • ½ cup (1 stick) Unsalted butter, softened
  • 1 cup Full-fat sour cream
  • 2 Large eggs
  • 1 tsp Vanilla extract
  • 2 cups Fresh blueberries (tossed in 2 tbsp flour)

The Streusel Topping:

  • ½ cup Brown sugar, packed
  • ½ cup Flour
  • ½ cup Chopped pecans
  • 1 tsp Cinnamon
  • 4 tbsp Cold butter, cubed

👩‍🍳 Instructions

1. The Streusel Prep

  • In a small bowl, mix the brown sugar, flour, pecans, and cinnamon.
  • Use a fork or your fingers to work in the cold butter until the mixture looks like coarse crumbs. Set aside in the fridge.

2. The Creamy Batter

  • Preheat your oven to 175°C (350°F). Grease a 9×9 inch square baking pan.
  • Cream the butter and sugar until light and fluffy. Add the eggs one at a time, then stir in the sour cream and vanilla.
  • Gradually add the flour, baking powder, and baking soda. The batter will be quite thick—this is normal for a coffee cake!

3. The Berry Fold

  • Gently fold the flour-dusted blueberries into the batter with a spatula. Do not over-mix, or you’ll end up with a purple cake.

4. The Layering

  • Spread the batter into the pan. Evenly sprinkle the chilled streusel topping over the entire surface.
  • Bake for 45–55 minutes. The cake is done when a toothpick comes out clean and the center doesn’t “jiggle” when the pan is tapped.

5. The Rest

  • Let the cake cool for at least 20 minutes before slicing. Coffee cakes need time for the sour cream fats to “set,” giving you that perfect, clean-cut slice.

The “Lemon Zest” Twist: For a brighter flavor, add the zest of one lemon to the cake batter. The acidity of the lemon cuts through the richness of the sour cream and makes the blueberry flavor pop.

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