Ingredients: 1 cup (2 sticks) unsalted butter, room temperature, plus more for pan 3 cups all-purpose flour, plus more for pan 1 1/2 cups sugar 2 large eggs 2...
Ingredients: 4 large egg whites, at room temperature 1/4 teaspoon salt 3 cups confectioners' sugar, sifted 1 cup creamy peanut butter, at room temperature 2...