To frost cake, place one of the cake rounds, flat side down, on a cake plate. Spread the top of that cake with about 3/4 to 1 cup of the frosting and spread into a 1/4-inch or so thick layer.

Eric’s options: If you’d prefer to serve two single-layer cakes, set each cake on it own cake plate, flat side up. Now ice the top and sides of each cake (you won’t need the jam here).