Prep Time 25 minutes mins
Cook Time 30 minutes mins
Resting Time 1 hour hr
Total Time 1 hour hr 55 minutes mins
Use room-temperature eggs and buttermilk to help the batter emulsify and create a tender crumb, and avoid overmixing once the flour is added to prevent toughness. If your white chocolate seizes, rescue it by stirring in 1 to 2 teaspoons of warm cream until smooth again. A kitchen scale helps divide batter evenly for level layers, and gently tapping filled pans on the counter releases large air bubbles. For deeper red color, adjust food coloring gradually, especially if using gel, and consider adding an extra teaspoon of cocoa for a slightly richer chocolate note. Store the cake covered in the fridge for up to 3 days and let it sit out 30 minutes before serving for best texture.