Bisquick® Coffee Cake

Preheat the oven to 400 degrees F (200 degrees C).

Grease a deep 9-inch pie pan.

Combine baking mix, milk, sugar, egg, and cinnamon in bowl; mix well.

Spread into the bottom of the prepared pan.

Mix baking mix, brown sugar, butter, and cinnamon together in a separate bowl using a fork or pastry blender until crumbly.

Spread topping mix over cake batter; drag a butter knife across the top as if making a tic-tac-toe board several times.

Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 25 minutes.