Preheat oven to 350 degrees F.
Set aside 1 cup of coconut and 1 cup of icing sugar.
Grind remaining ½ cup of coconut in a food processor. Add flour, ¼ cup icing sugar and salt. Pulse to blend. Add butter and vanilla and continue to pulse until a dough is formed.
Scoop 1 tbsp. balls of dough and flatten with your hands. Place half an Original TURTLE or Toasted Coconut TURTLE on the dough and top with another tbsp. of dough. Roll to form a ball.
Place snowballs 1 inch apart on an ungreased cookie sheet and bake until firm, but tender (about 15 minutes). Move to cooling racks and cool completely.
Pour remaining cup of icing sugar into a small bowl. Stir in enough milk to form a smooth but thick glaze. Dip cookies in glaze, and dip in chopped coconut. Move completed snowballs to plate and let dry completely.