Step 1

Preheat the oven to 375°F.

Step 2

In a large mixing bowl, combine all cake batter ingredients. Mix to form a smooth, thick cake batter.

Step 3

In another bowl, mix together the crumb topping ingredients until it combines and becomes crumbly.

Step 4

Spread the cake batter evenly in a greased 8x8 square baking pan and then add the crumb topping evenly over top of the cake batter (press it in a bit).

Step 5

Bake the coffee cake in the oven for 20 minutes. Remove and let cool before slices into 9 squares.