Leftover penuche frosting? Put it on Cinnamon Apple Coffee Cake

I admit it. I wanted to put the really, really old Albers Flapjack Flour – Peacock Buckwheat Flour serving gadget* in a pic so I took a photo of a slice of cake! One of my nieces says there’s never leftover frosting at her house, which could mean that there’s a deep layer of it … More Leftover penuche frosting? Put it on Cinnamon Apple Coffee Cake