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Blueberry Banana Crumb Cake

A heartwarming dessert, this quick and easy Blueberry Banana Crumb Cake is bursting with the sweetness of ripe bananas and juicy blueberries, finished with a crumbly topping.
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Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings: 8 servings
Course: Dessert, Snack
Cuisine: American
Calories: 180
Ingredients Method Notes

Ingredients
  

Cake Ingredients
  • 1 cup all-purpose flour
  • 1/2 cup sugar
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup ripe bananas, mashed (about 1 large banana)
  • 1/2 cup sour cream or Greek yogurt
  • 1/4 cup vegetable oil
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 cup fresh or frozen blueberries
Crumb Topping Ingredients
  • 1/2 cup all-purpose flour
  • 1/4 cup brown sugar, packed
  • 1/4 cup cold butter, cubed
  • 1/2 teaspoon cinnamon

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C). Grease a 9-inch round cake pan or line it with parchment paper for easy removal.
  2. In a large mixing bowl, whisk together the flour, sugar, baking powder, baking soda, and salt until well combined.
  3. In a separate bowl, mix the mashed bananas, sour cream or Greek yogurt, vegetable oil, egg, and vanilla extract until smooth.
  4. Gradually add the wet ingredients to the dry ingredients, stirring until just combined. Gently fold in the blueberries until evenly distributed.
  5. Pour the batter into the prepared cake pan, smoothing the top with a spatula.
Crumb Topping
  1. For the crumb topping, combine the flour, brown sugar, cubed butter, and cinnamon in a small bowl. Use a fork or your fingers to mix until crumbly.
  2. Sprinkle the crumb topping evenly over the batter in the cake pan.
Baking
  1. Bake in the preheated oven for 30-35 minutes or until a toothpick inserted in the center comes out clean.
  2. Allow the cake to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely.
  3. Serve warm or at room temperature and savor every delicious bite of your blueberry banana crumb cake.

Notes

For a dairy-free option, substitute cow's milk yogurt with almond or coconut yogurt. You can cut back on sugar by using a sugar alternative.