Preheat oven to 375 degrees.  Stir cookie mix, butter,  egg, and lime zest in a bowl until soft dough forms.

Drop dough by rounded Tablespoons 2 inches apart on an ungreased cookie sheet.

Bake for 11-14 minutes until edges are light brown.  Cool on sheet for 1 minute.  Remove from sheet and continue to cool.

While the cookies cook prepare the frosting.  Mix butter, sugar and coconut extract along with enough milk to make the frosting a spreadable consistency.

Once cookies are completely cooled.  Frost with frosting and sprinkle with toasted coconut.  Gently press the coconut on the cookie to the the frosting to hold it all.  Makes 2 dozen cookies.