Red Velvet Cake

Nobody knows for sure where this cake comes from, but lots of people agree with me that it is one magnificent cake. Its signature carmine coloration is dazzling, and I adore its tangy little grace note of flavor, created by the unusual combination of vinegar, buttermilk, and cocoa in the batter. Red food coloring is the not-so-secret ingredient responsible for its sassy color. Try gel paste food coloring (see Sur La Table or