Upside Down Strawberry Vanilla Cake is a nostalgic, delicious dessert that makes a great centerpiece for any occasion. Unlike a strawberry shortcake, it’s made from scratch and uses fresh strawberries. This fluffy vanilla cake with strawberry filling may seem a bit different than other cakes you may have made. There aren’t any cake layers, nor do you have to frost the cake. It’s packed with strawberry flavor, but this moist vanilla cake with strawberries is an upside down cake, so the bottom layer of strawberries ends up on the top of the cake.