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Maple Bourbon Banana Coffee Cake

Prep Time 15 minutes
Cook Time 40 minutes
Servings 9
This is the best banana coffee cake. Take banana coffee cake batter, swirl it with cinnamon, top with a crisp cinnamon streusel, and of course add a splash (or two) of bourbon.

Equipment

  • 9"x9" square baking pan

Ingredients

Cake Batter

  • 1¼ cups all-purpose flour
  • 1 tsp baking powder
  • ¼ tsp baking soda
  • ½ tsp ground cinnamon
  • ½ tsp fine sea salt
  • ⅓ cup vegetable or avocado oil
  • 2 large eggs, at room temperature
  • ½ cup granulated sugar
  • ¼ cup pure maple syrup
  • 1 tsp vanilla extract
  • ¼ tsp maple extract, optional
  • 1 cup mashed banana, approx. 3 medium bananas
  • ¼ cup Greek yogurt or sour cream
  • ¼ cup milk
  • 1 tbsp bourbon

Cinnamon Sugar Swirl

  • ½ cup light brown sugar
  • 2 tsp ground cinnamon

Streusel Topping

  • ½ cup all-purpose flour
  • ⅓ cup brown sugar
  • 4 tbsp unsalted butter, melted
  • 1 tsp ground cinnamon
  • pinch of salt

Icing (Optional)

  • ½ cup powdered sugar
  • 2 tsp milk
  • splash of vanilla

Instructions

Batter

  • Preheat the oven to 350°F and grease a 9x9 inch square cake pan (or line with parchment paper).
  • In a medium bowl, whisk together the flour, baking powder, baking soda cinnamon, and sea salt. Set this aside for now.
  • In a separate, larger bowl, whisk together the sugar, oil, eggs, maple syrup, vanilla extract, and maple extract (if using) until smooth. Then add the mashed banana, yogurt, milk, and bourbon and continue whisking until you have an even mixture.
  • Begin adding in the bowl of dry ingredients, adding ⅓ of it at a time, whisking until the flour is just combined between each addition. Make sure to not overmix the batter.

Cinnamon Swirl

  • In a small bowl, mix the ½ cup brown sugar and 2 tsp of ground cinnamon for the swirl together. Pour half of the batter into your prepared cake pan, sprinkle the cinnamon-sugar mixture in an even layer over it, and then pour the remaining batter on top.
  • Use knife or a toothpick to make a few swirls in the batter.

Streusel Topping

  • Mix all of the ingredients for the streusel together into a bowl. Crumble it into an even layer on top of your cake batter.
  • Bake for 40-45 minutes, or until the cake is no longer jiggly and a toothpick comes out clean. Let the cake cool before removing from the pan and slicing.
  • If you'd like to drizzle with icing, whisk the powdered sugar, milk, and vanilla together until smooth. Add more sugar or milk if needed to get to your desired consistency. Drizzle on top of the cake and enjoy!
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