Step 1

Preheat the oven to 350˚F.

Step 2

In a medium bowl, combine the melted butter, flour, brown sugar, cinnamon, and nutmeg. Use a fork to stir until it is all combined and forms a crumbly texture.

Step 3

In a large bowl, use a hand mixer or wooden spoon to combine the butter and white sugar until light and fluffy. Add the eggs and vanilla, and once combined, fold in the sour cream.

Step 4

Mix the flour, cinnamon, baking powder and salt. Add to the butter mixture and stir until just moistened.

Step 5

Grease an 8 in square baking dish. Spread half the coffee cake batter in the bottom of the dish. Sprinkle on half of the cinnamon crumble. Spread the remaining cake batter over the cinnamon crumble. Top with the remaining cinnamon crumble.

Step 6

Bake for 42-50 minutes, or until a toothpick comes out clean.

Step 7

Let cool for 5 minutes, then cut into 16 squares. Serve with coffee or your preferred beverage.