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Healthier Banana Cinnamon Coffee Cake

Fluffy and moist coffee cake filled with mashed bananas and cinnamon streusel. It's made with less butter and sugar, but still super delicious!
Prep Time25 minutes
Cook Time35 minutes
Total Time1 hour
Course: Breakfast, Dessert, Snack
Keyword: banana, cake, coffee cake, healthy
Servings: 1 9x13 inch pan
Author: Half the Sugar Baker

Ingredients

For the streusel topping:

  • 1/4 cup all purpose flour
  • 1/2 cup rolled oats
  • 1/4 cup brown sugar
  • 1 tablespoon ground cinnamon
  • 4 tablespoons unsalted butter room temperature

For the batter:

  • 1 cup milk room temperature
  • 2 tablespoons lemon juice
  • 1 1/2 cups all purpose flour
  • 1 1/2 cups whole wheat flour
  • 1/2 teaspoon ground cinnamon optional
  • 1/4 teaspoon ground nutmeg optional
  • 1 tablespoon baking powder
  • 1/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup granulated sugar
  • 1/2 cup butter room temperature
  • 3 eggs
  • 2 cups mashed bananas around 4 medium bananas
  • 2 teaspoons vanilla extract

For the filling:

  • 1/4 cup brown sugar
  • 1/2 cup chopped pecans
  • 1 tablespoon ground cinnamon
  • 1/4 cup shredded coconut optional

Instructions

  • Preheat oven to 350ยบ F. Grease a 9x13 inch baking dish and set aside.

Make the streusel:

  • In a medium bowl, mix together the flour, rolled oats, brown sugar, and ground cinnamon. Then add the butter and combine with a fork. Place in fridge until ready to use.

Make the batter:

  • In a small bowl, combine the milk and lemon juice. Set aside while you make the rest of the batter. You should see it begin to curdle.
  • In a large bowl, whisk together the all purpose flour, whole wheat flour, ground cinnamon, ground nutmeg, baking powder, baking soda, and salt. Set aside.
  • In a separate large bowl, cream the sugar and butter until light and fluffy. Then add the eggs one at a time, beating after each addition until incorporated. Then add the mashed bananas and vanilla extract and beat until combined.
  • Add the dry ingredients to the wet ingredients and stir until just combined. Pour half of the batter into the prepared pan. Then sprinkle the ingredients for the filling evenly on top. Then add the rest of the batter and gently spread into an even surface using a spatula. Remove the streusel from the fridge and break into small pieces using your fingers. Sprinkle the streusel on top of the batter and bake for 30-40 minutes in the preheated oven.
  • Once done baking, remove from the oven and serve warm. Enjoy!

Notes

1 tablespoon may seem like a lot of baking powder, but it's necessary for this cake because the bananas make the batter fairly heavy.