Make-Ahead Brown Sugar and Spice Cake Mix | America's Test Kitchen

Ingredients

• 1 cup packed (7 ounces/198 grams) dark brown sugar
• 1 cup (7 ounces/198 grams) granulated sugar
• 1 1/2 cups (7½ ounces/213 grams) all-purpose flour
• 1 1/2 cups (6 ounces/170 grams) cake flour
• 1/2 cup (1½ ounces/43 grams) nonfat dry milk powder
• 1 tablespoon baking powder
• 1 teaspoon salt
• 1 tablespoon ground cinnamon
• 1/2 teaspoon ground nutmeg
• 1/2 teaspoon ground cloves
• 16 tablespoons unsalted butter (2 sticks), cut into 1/2-inch pieces and chilled
• 1 tablespoon vanilla extract