Margarita Cookies for Fiesta

A friend of mine is having a Birthday Fiesta tonight and thus I made Margarita Cookies.

I always base my sugar cookies on the Joy of Cooking's old Rich Roll Cookies recipe. I follow it perfect except I double occasionally triple  the vanilla and tend to use the lowest cooking time. 

I follow the Royal Icing Recipe from Sweetopia. Usually I only make a half recipe as otherwise you need a ton of cookies and I am usually not decorating that many at once.
Actually, when it comes to cookies Sweetopia is the world best inspiration for pretty baked goods I highly recommend following her great stuff.