Using an electric beater, cream (beat together) the butter and sugar until light and fluffy. Add the eggs one at a time, beating after each addition. Add the remaining ingredients, except the chocolate chips, and beat until well combined. Fold in the chocolate chips.
Evenly distribute the batter into the lined cupcake pans, filling each liner about ¾ full, and bake for about 15 to 18 minutes, or until a toothpick comes out clean (or with a few crumbs).
Let cool completely, then frost with Mint Chocolate Chip Frosting (recipe follows).