Tequila Lime Buttercream

1/2 cup shortening
1/2 cup butter (softened)
1 lb. powdered sugar (1/2 bag- give or take)
1 tsp. vanilla extract
1 1/2 tablespoon lime juice
2 tablespoons lime zest
2 tablespoons tequila
1/2 tablespoon milk
Green& yellow food coloring: however many drops you want to make the frosting look lime-y- about 1 green drop to every 3 yellow (optional)

Cream the butter and shortening with your stand mixer. Add the vanilla, lime juice, zest, and tequila. Mix until combined. Add the powdered sugar. Start with about half the bag. Add the milk and if the frosting is too soft, add more powdered sugar. Add the food coloring if you want now and then Whip the frosting for 3-5 minutes and then frost your cooled cupcakes. After I frosted my cupcakes, I rolled the edges of the frosting in sugar (to mimic a margarita glass)