How To Make Strawberry Cake From A Box Better. To make my almond buttercream, simply beat together 1 stick of shortening with 2 sticks of butter and then slowly incorporate about 5 1/2 cups of powdered sugar. The second step is to add one more egg (or two if you want it to be very rich).
Some bakers scoff at box mixes, think it’s sacrilege and only bake from scratch. Admittedly, sprinkles make any cake higher. You should have about 1 1/4 cups of puree.