If you make one cake, carefully slice it into horizontal slices, as we've done in the picture here, then cut out each 'layer' to form heart shapes. Sandwich together using icing and decorate with ...
Line 2 (8") round cake pans with parchment and grease with cooking spray. In a large bowl, using a handheld mixer ... Add buttermilk, vinegar, and red food coloring and beat on medium speed ...