Creating a delicious Banana Coffee Cake is easy when you follow these step-by-step instructions:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan.
2. Prepare the Crumb Topping: In a medium bowl, combine the flour, brown sugar, melted butter, and cinnamon. Mix until crumbly and set aside.
3. Mix Wet Ingredients: In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy. Add the mashed bananas and mix well.
4. Add Eggs: Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next.
5. Incorporate Coffee and Vanilla: Stir in the cooled brewed coffee and vanilla extract until just combined.
6. Combine Dry Ingredients: In a separate bowl, whisk together the flour, baking soda, salt, and cinnamon.
7. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, stirring until just combined. Be careful not to overmix.
8. Pour Batter: Pour the batter into the prepared baking pan, spreading it evenly.
9. Add Crumb Topping: Evenly sprinkle the crumb topping over the batter.
10. Bake: Place in the preheated oven and bake for 40-45 minutes or until a toothpick inserted in the center comes out clean.
11. Cool the Cake: Once baked, remove the cake from the oven and allow it to cool in the pan for 15-20 minutes before transferring it to a wire rack to cool completely.

With these clear instructions, you’ll be able to create a moist and flavorful Banana Coffee Cake that will have everyone asking for seconds.