Banana Bread Coffee Cake

A banana coffee cake layered with espresso filling, topped with walnut streusel, and finished with maple glaze. Preparation/total time includes an estimate based on the recipe steps; the creator did not specify every timing field.

By @acozykitchen

Original recipe source

Cook time: 45 minutes

Servings: 9

Ingredients

• 2 tablespoon granulated sugar for streusel
• 1 whole all-purpose flour for streusel
• 1 whole walnuts finely chopped, for streusel
• 1 teaspoon ground cinnamon for streusel; for espresso filling; for cake batter
• 0.125 teaspoon ground nutmeg for streusel; for cake batter
• 0.125 teaspoon kosher salt for streusel; for espresso filling; for cake batter
• 3 tablespoon unsalted butter cold and cubed, for streusel
• 0.333 cup brown sugar lightly packed, for espresso filling
• 1.5 teaspoon instant espresso powder for espresso filling
• 0.5 teaspoon ground cinnamon for streusel; for espresso filling; for cake batter
• 0.125 teaspoon kosher salt for streusel; for espresso filling; for cake batter
• 1.75 cup all-purpose flour for cake batter
• 1 cup granulated sugar for cake batter
• 1.5 teaspoon baking powder for cake batter
• 0.5 teaspoon baking soda for cake batter
• 1 teaspoon ground cinnamon for streusel; for espresso filling; for cake batter
• 0.125 teaspoon ground nutmeg for streusel; for cake batter
• 0.75 teaspoon kosher salt for streusel; for espresso filling; for cake batter
• 1 cup mashed banana from 2-3 medium bananas
• 0.5 cup sour cream
• 0.25 cup neutral oil
• 0.25 cup unsalted butter melted and cooled to room temperature
• 2 whole eggs
• 1 teaspoon vanilla extract for cake batter; for glaze
• 0.5 cup powdered sugar for glaze
• 1.5 tablespoon maple syrup for glaze
• 0.5 teaspoon vanilla extract for cake batter; for glaze

Instructions

1. Heat the oven to 350°F. Grease an 8-by-8-inch square baking pan and line it with parchment, leaving overhang on all sides. Oven is preheated and pan is lined.
2. Make the streusel: combine the sugar, flour, walnuts, cinnamon, nutmeg, salt, and cold cubed butter. Work in the butter with your fingers until pea-sized crumbs form, then chill. Streusel is crumbly and chilled.
3. Make the espresso filling: mix the brown sugar, espresso powder, cinnamon, and salt until evenly combined. Filling is mixed.
4. Make the cake batter: whisk together the flour, sugar, baking powder, baking soda, cinnamon, nutmeg, and salt. Dry ingredients are combined.
5. In a large bowl, whisk the mashed banana, sour cream, oil, melted butter, eggs, and vanilla until smooth. Add the dry ingredients and mix just until combined. Batter is just combined.
6. Spread a little more than half the batter in the pan. Sprinkle the espresso filling evenly over it, then cover with the remaining batter and smooth the top. Filling is layered between batter.
7. Top with the chilled streusel and bake for 45 to 50 minutes, until a skewer inserted in the center comes out clean. Cool in the pan on a rack. Cake is baked through and cooled.
8. Make the glaze by stirring together the powdered sugar, maple syrup, and vanilla until smooth, then drizzle over the cooled cake. Let it set briefly before slicing into 9 pieces. Glaze is set and cake is sliced.