COMBINE crushed cookie crumbs, sweetened condensed milk, mincemeat, coconut, nuts, orange juice and orange peel in large bowl until well blended. Chill 4 hours or overnight.

The flavor improves after 24 hours. They can be made ahead and stored in refrigerator for several weeks.

SHAPE into 1-inch balls. Rechill if mixture becomes too soft. Roll in cocoa or powdered sugar. Place on wax paper lined baking sheets. Chill 1 hour or until firm.