Fold in the lime juice using a wooden spoon or rubber spatula. If the filling becomes too fluid, add more confectioners' sugar until desired thicker consistency.
Wrap small stacks of 2-3 rosette sandwiches in plastic wrap. Place the stacks in a column across the bottom of a quart or gallon size freezer weight ziplock bag. Remove as much air as possible before sealing. These cookies also make a lovely gift packaged with each sandwich cookie in a mini cupcake paper and arranged in a gift box. Be sure to place bubble wrap or crinkled up wax paper between the cookies and the box lid to prevent any movement of the cookies.