Preheat oven to 350°F. Line a standard cupcake pan with 12 paper cupcake liners. In a medium bowl, mix together the flour, baking powder, nutmeg, cinnamon and baking soda until well combined. Set aside.
1 1/4 cup all purpose flour, 1 teaspoon baking powder, 1 teaspoon ground nutmeg, 1/2 teaspoon ground cinnamon, 1/4 teaspoon baking soda
In the mixing bowl of an electric mixer fitted with a paddle, add the butter and sugar. Beat on medium to high speed until light and fluffy, about 3-5 minutes. 1/2 cup unsalted butter, 1 cup granulated sugar
Lower the speed and add the eggs, one at a time, and continue to beat until fully incorporated.
2 eggs
Add the eggnog and vanilla extract.
1/2 cup eggnog, 1 teaspoon vanilla extract
With the mixer on low speed, gradually add the dry ingredients until just blended. Be careful not to over-mix the batter.
Fill each cupcake liner about halfway full with the batter.
Bake 17-18 minutes, or until a toothpick inserted into the center comes out clean.
Allow the cupcakes to fully cool before frosting.