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+ servings
One slice of banana bread coffee cake on its side.
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5 from 38 votes

Banana Bread Coffee Cake

This banana bread coffee cake is a banana bread baked in a square pan with a cinnamon swirl filling. It is topped with a cinnamon streusel and a vanilla glaze. It has a crunch on top with a super soft cake!
Prep Time25 minutes
Cook Time40 minutes
Total Time1 hour 5 minutes
Servings: 16 slices
Calories: 289kcal

Ingredients

Cinnamon Streusel Topping

  • ½ cup Brown sugar packed light or dark
  • ¼ cup White granulated sugar
  • 1 ½ teaspoon Ground cinnamon
  • ¼ teaspoon Salt
  • 1 ¼ cup All-purpose flour
  • ½ cup Unsalted butter melted

Cinnamon Filling

  • 3 tablespoon Brown sugar packed
  • 1 ½ teaspoon Ground cinnamon

Banana Bread

  • ½ cup Unsalted butter melted and cooled
  • ½ cup Brown sugar packed
  • ¼ cup White granulated sugar
  • 2 Large eggs room temperature
  • ¼ cup Sour cream room temperature
  • 1 teaspoon Pure vanilla extract
  • 3 Medium over ripe bananas mashed
  • 2 cups All-purpose flour
  • 1 teaspoon Baking soda
  • ½ teaspoon Salt
  • 1 teaspoon Ground cinnamon

Vanilla Glaze

  • 1 cup Powdered sugar sifted
  • ½ teaspoon Pure vanilla extract
  • 1-2 tablespoon Milk

Instructions

Cinnamon Streusel Topping

  • In a medium bowl, mix the brown sugar, sugar, cinnamon, salt, flour, and melted butter with a fork until it clumps up. Place in the fridge while you make the rest of the cake.
    ½ cup Brown sugar, ¼ cup White granulated sugar, 1 ½ teaspoon Ground cinnamon, ¼ teaspoon Salt, 1 ¼ cup All-purpose flour, ½ cup Unsalted butter

Cinnamon Filling

  • In a small bowl, mix the brown sugar and cinnamon together. Set aside.
    3 tablespoon Brown sugar, 1 ½ teaspoon Ground cinnamon

Banana Bread

  • Preheat the oven to 350°F. Spray a 9X9-inch square pan with baking nonstick spray. Line the bottom and sides with parchment paper and spray again.
  • In a large bowl, mix the melted butter (make sure it is cooled to room temperature), brown sugar, sugar, vanilla, eggs, sour cream, and mashed bananas (mash these well before adding to the bowl). Use a whisk to mix until combined and smooth.
    ½ cup Unsalted butter, ½ cup Brown sugar, ¼ cup White granulated sugar, 2 Large eggs, ¼ cup Sour cream, 1 teaspoon Pure vanilla extract, 3 Medium over ripe bananas
  • Add the flour, baking soda, salt, and cinnamon. Mix this in until just combined.
    2 cups All-purpose flour, 1 teaspoon Baking soda, ½ teaspoon Salt, 1 teaspoon Ground cinnamon
  • Pour half of the banana batter into the pan and smooth using a rubber spatula. Sprinkle the cinnamon filling evenly on top of the batter. Use all of it. Spread the rest of the banana batter on top of the filling.
  • Pull the cinnamon topping out of the fridge and use your hands to break up the big clumps before sprinkles on evenly on top of the batter. Use all of it.
  • Bake for 35-45 minutes until a toothpick inserted comes out clean.
  • Let the cake sit on the hot pan for 10 minutes. Transfer the cake to a cooling rack by holding on to the parchment paper on the sides to lift it out of the pan.

Vanilla Glaze

  • Mix in a small bowl, mix the powdered sugar, vanilla, and milk. Add a little bit of milk at a time and mix until it is pourable.
    1 cup Powdered sugar, ½ teaspoon Pure vanilla extract, 1-2 tablespoon Milk
  • Pour the glaze on top of the hot cake. Pour it all on. Let the cake cool completely before serving.

Notes

Flour- Make sure flour is spooned and leveled or use a kitchen scale. Compacted flour can dry out the cake.
High altitude baking- Add an extra 2 tablespoon of flour.
Pull out dairy ingredients 2 hours before baking.

Nutrition

Calories: 289kcal | Carbohydrates: 50g | Protein: 3g | Fat: 13g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.5g | Cholesterol: 33mg | Sodium: 186mg | Potassium: 61mg | Fiber: 1g | Sugar: 22g | Vitamin A: 380IU | Vitamin C: 0.1mg | Calcium: 30mg | Iron: 1mg