Grandma Greegor also made these every Christmas. They were not my favorite but worth a try.
Tbs. Grated Lemon Rind
C Sifted Flour
tsp. Baking Powder
Beat eggs and sugar together for 25 minutes at high speed. Mix in flour, baking powder, salt and vanilla. Beat throughly. Chill 1 hour. Roll out dough to 1/2" thick on floured board. Use a springerle rolling pin to make impressions. Cut and arrange on bread board and leave exposed to the air overnight. In the morning arrange on greased cookie sheet. Bake at 300 degrees for 15-20 minutes.