Chocolate Heart Throbs

INGREDIENTS

• 3 cups sugar
• 2 1/4 teaspoons baking powder
• 2 3/4 cups all-purpose flour
• Red food coloring
• 1/4 teaspoon pure vanilla extract
• 2 egg whites
• 1/4 cup light corn syrup
• Red sugar, for sprinkling
• Equipment: 2 to 2 1/2-inch heart cookie cutter
• 1 tablespoon pure vanilla extract
• 1/4 cup water
• 1 1/2 teaspoons salt
• 1 tablespoon powdered gelatin
• 2 1/4 teaspoons baking soda
• 3 eggs
• 3/4 cup sugar
• 1 1/2 cups milk
• 1 1/2 cups very hot water
• 1 1/8 cups cocoa powder, preferably Dutch-processed
• 3/4 cup vegetable oil
• 2 tablespoons cold water