Hershey's Light Chocolate Cake

A lightened-up chocolate layer cake from Hershey’s test kitchen, built on cocoa powder, skim milk, and corn-oil margarine instead of butter and whole milk. Egg-free, lower in fat than traditional chocolate cake, and surprisingly moist.

The vinegar trick is the science that makes this work. A tablespoon of vinegar reacts with baking soda to produce carbon dioxide, leavening the cake in place of eggs. This is the same technique used in classic wacky cake or depression cake, and it produces a tender, slightly springy crumb every time.

Melting the margarine and stirring in the sugar off the heat is the reverse of traditional creaming, but it works because this batter relies on chemical leavening rather than trapped air. The sugar partially dissolves in the warm fat, giving a smoother final texture.

Bake at 350°F (175°C) for 20 minutes only. Overbaking dries out an already-lean cake, so pull it the moment a pick comes out clean. The tops should spring back lightly when pressed.

Fill and frost when fully cool. A chocolate glaze, a light whipped cream, or a skinny buttercream all pair well without erasing the “lighter” selling point.

Kitchen Tips

• Use unsweetened natural cocoa, not Dutch-processed, for the acid balance with baking soda.
• Do not overmix once dry ingredients go in, gluten development turns the cake tough.
• Cool in the pans 10 minutes before inverting, warm layers tear.
• Level with a serrated knife if the tops dome, for a cleaner stack.

Variations

• Add a teaspoon of espresso powder to the dry ingredients for deeper chocolate flavor.
• Swap skim milk for almond milk to make it dairy-free.
• Fill with chocolate ganache between layers for an indulgent twist.