Margarita Cupcakes

I love margaritas! They're just so delicious!  I saw a bunch of margarita cupcake recipes around cinco de mayo so I thought I'd try one.  They turned out so delicious!  I halved the recipe since I really don't need to eat 24 cupcakes myself and I don't think my boss would be so happy if I brought them to work.  They were delicious   Definatley worth the work put in! 
Here's the recipe:


Margarita Cupcakes
From Beantown Baker
Makes 24


Cupcakes
2 1/4 cups (9 ounces) cake flour
1 Tbsp baking powder
1/2 tsp salt
1 1/4 cups whole milk 
4 egg whites
1 1/2 cups (10 1/2 ounces) sugar
2 tsp grated lime zest
1 stick (8 Tbsp or 4 ounces) unsalted butter, at room temperature
1 tsp lime juice
1/4 cup tequila

Center a rack in the oven and preheat the oven to 350 degrees F. Prepare 2 muffin pans with cupcake liners.

Sift together the flour, baking powder and salt.

Whisk together the milk and egg whites in a medium bowl.

Put the sugar and lime zest in a mixer bowl or another large bowl and rub them together with your fingers until the sugar is moist and fragrant. Add the butter and working with the paddle or whisk attachment, or with a hand mixer, beat at medium speed for a full 3 minutes, until the butter and sugar are very light. 

Beat in the lime juice, then add one third of the flour mixture, still beating on medium speed. 

Beat in half of the milk-egg mixture, then beat in half of the remaining dry ingredients until incorporated. Add the rest of the milk and eggs beating until the batter is homogeneous, then add the last of the dry ingredients. Finally, give the batter a good 2- minute beating to ensure that it is thoroughly mixed and well aerated.

Divide the batter into the cupcake liners. Bake for 20-25 minutes, or until the cupcakes are well risen and springy to the touch. Transfer to cooling racks and cool for about 5 minutes, then remove cupcakes from the pans and cool completely. Once cupcakes have cooled, brush the top of each cupcake with a 1/2 tsp of tequila.

Frosting
2 sticks of butter, room temperature
2 lbs (8 cups) powdered sugar
1/4 cup tequila
Zest of 2 limes
pinch of salt

Add butter to the bowl of a stand mixer, beat until light.

Add half the tequila, lime zest and salt, mix.

Add powdered sugar 1/2 cup at a time, mixing well and scraping down sides as necessary. 

Continue to add sugar and tequila as necessary.