Ingredients FOR THE CUPCAKES 4 ounces (1/2 cup) unsalted butter, softened 1/4 teaspoon salt 2 teaspoons baking powder 1 teaspoon ground cinnamon 1 cup granulated sugar 2 eggs 8.2 ounces (2 cups) all purpose flour 8 ounces (1 cup) eggnog FOR THE ICING 4 ounces (1/2 cup) butter softened 4 ounces cream cheese, softened 3-4 …