Red Velvet Cake | Saveur

Ingredients

• 16 tbsp. unsalted butter, softened, plus more for pans
• 2 1⁄2 cups cake flour, plus more for pans, sifted
• 2 tbsp. Dutch-processed cocoa powder, sifted
• 1 tbsp. baking powder
• 1 tsp. kosher salt
• 1 cup buttermilk
• 2 tbsp. red food coloring
• 1 tbsp. distilled white vinegar
• 1 tsp. vanilla extract
• 1 1⁄2 cups sugar
• 2 eggs
• 1⁄3 cup flour
• 1 1⁄2 cups milk
• 1 1⁄2 cups unsalted butter, softened
• 2 tsp. vanilla extract