Combine the butter and cream cheese in a large bowl. Beat with an electric mixer until light and fluffy.
Add the powdered sugar slowly and beat until light and fluffy. Beat in the vanilla and maple extract. If necessary, add more powdered sugar until the frosting is firm enough to hold its shape but still light and fluffy.
Frost on cupcakes, cookies or your favorite dessert.
Storage: Store in the refrigerator in an airtight container up to 4-5 days. Variations: If you'd like to take up to flavor, you can add a pinch of cinnamon or pumpkin spice.