Cream butter, sugar, rind, and eggs thoroughly. Stir in flour. Chill dough for an hour or so. Take about a teaspoon of dough and roll it into a rope, "tie" the rope loosely (like a wreath or a soft pretzel).
Brush with beaten egg white and decorate with candied cut red and green cherries. Bake in preheated 400 degree oven until set but not browned.