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This moist coffee cake is speckled with juicy blueberries throughout and topped with a sweet brown butter streusel topping

Blueberry Coffee Cake with Brown Butter Streusel

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Moist, flavorful, and speckled with fresh juicy blueberries, this Blueberry Coffee Cake features a brown butter streusel topping, setting it above the rest in the flavor department! Enjoy with your coffee or tea, or as a dessert.
Course Baking, Dessert
Cuisine American, German
Keyword blueberries, brown butter, Cake, cinnamon buns, coffee cake, streusel
Prep Time 25 minutes
Cook Time 40 minutes
Total Time 1 hour 5 minutes
Servings 1 cake

Equipment

  • Stand mixer

Ingredients

Blueberry Coffee Cake

  • 240 g All Purpose Flour
  • 1 ½ tsp Baking Powder
  • 1/2 tsp Salt
  • 1/2 tsp Cinnamon
  • 1/2 cup Unsalted Butter, at room temperature
  • 1/2 cup White Sugar
  • 1/2 cup Dark Brown Sugar
  • 2 Large Eggs
  • 2 tsp Vanilla Extract
  • 3/4 cup Full-Fat Sour Cream
  • 1 ½ cups Fresh Blueberries, if using frozen see above
  • 2 tbsp Corn Starch, for dusting blueberries

Brown Butter Streusel Topping

  • 5 tbsp Unsalted Butter, at room temperature
  • 1/2 cup White Sugar
  • 3/4 cup All Purpose Flour
  • Pinch of Salt

Instructions

Blueberry Coffee Cake

  • Preheat oven to 350°F. Prepare an 8” pan with oil and parchment paper. In a medium sized bowl, add blueberries and lightly toss with cornstarch, then dust off any excess cornstarch.
  • In a stand mixer fitted with the paddle attachment, add butter, white sugar and brown sugar. Beat on medium-high until light and fluffy looking, about 3-4 minutes. Add in the eggs, one at a time, beating well after each addition and scraping the sides of the bowl.
  • In a separate medium sized bowl, add the flour, baking powder, cinnamon, and salt. Whisk together to combine.
  • Add 1/3 of the flour mixture to the stand mixer, mix on low until combined. Add ½ of the sour cream and mix on low until combined. Continue alternating the flour and the sour cream, until both have been completely added (finishing with the flour mixture). Add the vanilla and mix until combined. Fold in the blueberries
  • Pour the batter into the pan and spread smooth. Sprinkle the top with the streusel, then place into the oven and bake for 35-40 minutes or until an inserted toothpick comes out clean.

Brown Butter Streusel

  • In a small sauce over medium heat, add butter and bring to a boil. Continue heating over medium heat, constantly stirring until the butter has turned a nutty brown color. It may be hard to see the color if your butter is foaming a lot, so periodically take it off the heat to check the color. Once browned remove from heat and allow to sit for 10 minutes to cool slightly.
  • Meanwhile, in a medium mixing bowl, add sugar, flour, and salt. Whisk to combine well.
  • Pour the brown butter into the dry mixture and mix with a fork until well combined, and the mixture resembles sand.