Prep Time 20 minutes mins
Cook Time 30 minutes mins
Resting Time 1 hour hr
Total Time 1 hour hr 50 minutes mins
Use natural cocoa for classic red color, as Dutch-process can mute the hue; adjust food coloring to achieve a vibrant but not overly dark batter, keeping in mind that baking slightly dulls the color. Ensure ingredients are at room temperature for a smoother batter and even rise. If your buttermilk is very thick, add a tablespoon of milk to loosen the batter slightly. Avoid overmixing after combining wet and dry ingredients to prevent a dense crumb. For sturdier layers, chill the cooled cakes for 20 minutes before glazing. If the glaze seems too thick, whisk in milk a teaspoon at a time; if too thin, add a tablespoon of powdered sugar. Store covered at room temperature for 1 day or refrigerate up to 4 days; bring slices to room temp for the best texture.