If I had to choose my favorite breakfast sweet, it would be coffee cake. Allegedly, even though it contains zero coffee, it is named this because it is the perfect compliment to a cup of coffee. While I can’t attest to that because I don’t drink coffee, I can tell you that this Gluten Free Apple Cinnamon Coffee Cake is one of the best I have ever had. This recipe was inspired by King Arthur Flour‘s recipe for Cinnamon Streusel Coffeecake, but I couldn’t help but tamper with it. What Makes A Coffee Cake, A Coffee Cake Then? All coffee cakes start with a poundcake base. A high amount of…