Mocha Coffee Cake

Preheat oven to 350 degrees F. Lightly coat an 8x8x2-inch or 9x9x2-inch baking pan with cooking spray; set aside.

To prepare Topping: In a small bowl stir together the brown sugar, flour, cocoa powder, and cinnamon. Cut in butter until mixture resembles coarse crumbs; set aside.

To prepare Coffee Cake: In a large bowl stir together flour, brown sugar, cocoa powder, espresso powder, baking powder, baking soda, and salt. Make a well in the center of the flour mixture; set aside.

In a medium bowl combine eggs, sour cream, water, canola oil, and vanilla. Add to flour mixture; stir just until combined. Spread batter evenly in prepared pan. Sprinkle evenly with topping.

Bake for 25 to 30 minutes or until a wooden toothpick inserted in the center comes out clean. Cool in pan on a wire rack for 15 minutes. Cut into 12 pieces; serve warm.