It’s a moist, crumbly cake with a cinnamon-flavored streusel topping for added texture.
Cake
Topping
* Vanilla extract is not in the original recipe, but I think it makes a lot of difference. I always add it.
The original recipe calls for baking in a 9 inch pie plate, but we have found that an 8 inch square stainless steel cake pan works best at the same temperature for the same amount of time.
Find it online: https://simplygreatrecipes.com/bisquick-coffee-cake/