Banana Rum Coffee Cake w/Brown Sugar Topping & Rum Icing

I like bananas. I really do. So imagine my surprise when I opened up the cupboard and found a bunch of brown-spotted bananas. Lucky for my family, I know how to use up brown bananas. Why don't I keep them on the counter you ask? It's a long story. Anyway, I'm continuing with the rum theme because I need to use up the rum extract that I bought for the previous coffee cake. If you don't like rum, you can always use vanilla or maple extract. Also, I opened up my brand new fridge and realized that I had no buttermilk and no sour cream. So, I used some honey flavored Zoi Greek yogurt because that's what I had on hand. It's called "rummaging-through-the-fridge-and-the-cupboards-and-using-what-I-find" method of baking.

Low Fat Apple Banana Spice Coffee Cake

I've hesitated posting a low fat coffee cake recipe. My philosophy on baked goods is "If you have to ask, you can't afford it." I say this as someone who has lost 50lbs in a year. I'm not trying to be flip, but the ugly truth is that you need some fat in baked goods to make them taste good. Nevertheless, I realize that others might count calories and fat grams. I've done a couple of things to try to retain the taste and texture: (1) I've substituted oat flour for some of the wheat flour as oat flour contains more fat; (2) I've added spices and orange zest for flavor. There is no icing or crumb topping on this cake...only chopped apples with cinnamon sugar.