Heat oven to 350°F. Beat cookie dough, orange juice and zest. Stir in flour (dough will be soft). Generously sprinkle more flour on countertop.Advertisement
Divide dough in half, then roll one half to 1/4 inch thickness. Cut out shapes with a 3-1/2-inch snowflake cutter. Transfer to ungreased baking sheets. Repeat with remaining dough, dusting with flour as needed.
Bake at 350°F for 14 minutes. Cool on racks.
Prepare Royal Icing. Spread thinned icing over cookies. Let dry. Place thicker icing into a decorating bag fitted with a small round tip. Pipe lines and dots decoratively on all cookies; let dry.