I asked my friend and neighbor what kind of cake she’d like for her birthday on July 15th. To my surprise, she said spice cake with caramel frosting. We talked about divvying it up with other cake lovers nearby and she said, not excited in the least, “I suppose it should be a sheet cake.” … More 2 Birthday Cakes: Spice Cake with Caramel Frosting, AKA Penuche!