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Sour Cream Blueberry Banana Bread with Streusel Topping
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3.69 from 16 votes

Sour Cream Blueberry Banana Bread with Streusel Topping

This blueberry banana bread is super-moist and flavorful thanks to sour cream, cinnamon and nutmeg.
Prep Time15 mins
Cook Time1 hr
Total Time1 hr 15 mins
Course: Breakfast
Cuisine: American
Servings: 12
Calories: 306kcal


  • 2 cups unbleached all-purpose flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon sea salt
  • 1 teaspoon cinnamon
  • 1/2 teaspoon nutmeg
  • 1 stick butter at room temp
  • 1 cup brown sugar
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 1 cup fresh or frozen blueberries
  • 1 cup mashed banana about 2 small bananas
  • 1/2 cup sour cream
  • 1/2 cup chopped pecan or walnuts
  • Streusel Topping:
  • 1/2 cup unbleached all purpose flour
  • 1/4 cup brown sugar
  • 1/2 stick butter cut into cubes
  • 1/4 teaspoon cinnamon


  • Preheat oven to 350 degrees F.
  • Grease a loaf pan.
  • In a large mixing bowl, add flour, baking powder, baking soda, salt, cinnamon and nutmeg. Stir with a wire whisk to thoroughly combine. Set aside.
  • In a small bowl of a stand mixer, cream together butter and brown sugar.
  • Add in the eggs, one at a time, and mix well after each egg is added.
  • Add vanilla and sour cream and mix well.
  • Add the butter mixture to the flour mixture and gently mix with spoon to combine.
  • Gently fold in blueberries, banana and walnuts to batter.
  • Pour batter into prepared loaf pan.
  • Combine streusel ingredients in a food processor and pulse to combine until mixture becomes crumbly.
  • Sprinkle streusel over batter and place in oven. Bake 50-60 minutes or until toothpick inserted in batter comes out clean or with a few crumbs attached. (If toothpick has batter on it, return bread to oven and bake another 5 minutes then re-test.)
  • Place on rack to cool and store in refrigerator.


Calories: 306kcal | Carbohydrates: 58g | Protein: 4g | Fat: 6g | Saturated Fat: 1g | Cholesterol: 32mg | Sodium: 172mg | Potassium: 299mg | Fiber: 3g | Sugar: 32g | Vitamin A: 110IU | Vitamin C: 1.7mg | Calcium: 63mg | Iron: 1.9mg