Nutella-Banana Coffee Cake
NUTELLA-BANANA COFFEE CAKECAKE:1 c. unsalted butter3 ¾ c. flour2 c. sugar1 T. baking powder1 ½ t. salt¼ t. baking soda1 c. buttermilk4 large eggs, room temp¼ c. sour cream2 t. vanillaFILLING:2 small ripe bananas, peeled and thinly sliced½ c. Nutella¼…