– 460 g (3 1/3 cup) all-purpose flour – 9.5 g (2 1/2 teaspoons) baking powder – 2.8 g (1/2 teaspoon) baking soda – 2.8 g (1/2 teaspoon) salt – 280 g (2.5 sticks) unsalted butter, at room temperature – 440 g (2 cups) granulated sugar
– 90 g (3 large) egg whites, at room temperature – 8 g (2 teaspoons) pure vanilla extract – 4 g (1 teaspoon) peppermint extract – 240 g (1 cup) sour cream, at room temperature – 240 g (1 cup) whole milk, at room temperature
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A glass bowl over a small saucepan with hot water can help melt chocolate. Stir chocolate until smooth and shiny with a wooden spoon or whisk.
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Dark-coated cake pans bake cakes faster and darken their edges. This is because dark metal pans absorb and transfer heat faster than light ones. Reduce oven temperature to 325°F/163°C for dark pans. Even baking is best with aluminum cake pans.
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