Ooey Gooey (Easy) Coffee Cake

My mom used to make this easy, Bisquick-based coffee cake and we loved the way the melted cinnamon topping would seep down into the cake, creating pockets of warm, gooey cinnamon deliciousness, much like a the warm center of a cinnamon roll. As an adult, I’ve doctored her recipe to make it more rich and yummy.