Preheat your oven to 350℉.
In a large bowl, beat together the butter, lime juice and lime zest.
Add in the powdered sugar and flour slowly, until combined.
Once a dough forms, move to a floured surface and roll out until it's about ½ an inch thick.
Cut out circles (you can use a cookie cutter or a glass).
Put onto a non-stick pan, and bake for 12 minutes.