My grandmother's birthday was on Valentine's Day and we ate this cake with her every year - often made in the shape of a heart. I hear it has now gotten quite trendy. They even eat it over this side of the pond. 1/2 cup unsalted butter 1 1/2 cup sugar 2 eggs 2 Tbsp. red food color 2 Tbsp. cocoa 2 1/2 cups all-purpose flour, sifted 1 tsp. salt 1 cup buttermilk 1 tsp. vanilla 1 tsp. baking soda 1 tsp. vinegar Preheat oven to 350 degrees. Grease two 8 inch round cake pans. Cut two circles of wax paper and set one in bottom of each pan. Cream together butter, sugar and eggs. Add vanilla. In a small bowl, mix food coloring and cocoa into a paste and blend into to butter/sugar/egg mixture. In a separate bowl, mix together flour and salt. Alternating between the two, add the buttermilk and the flour/salt mixture to the batter a little bit at a time. Quickly mix together baking soda and vinegar and gently fold into the batter with economic strokes. Pour batter into pans. Bake 30 minut...