My grandmother used to make this cake and it’s still one of my all time favorites — for breakfast, snack, dessert … whenever. For the Crumb Topping: 1/3 c white sugar 1/3 c brown sugar 3/4 tsp cinnamon 1/8 tsp salt 8 TBS melted butter 1 3/4 c cake flour For the Cake:  1 1/4…