Combine milk with vinegar to make sour milk. Let stand for 5 minutes. In a large mixing bowl, combine sugars, shortening, eggs, and vanilla. Add flour, soda, baking powder, salt, and nutmeg. Stir in sour milk and mix well.

NOTE: Dough will be very sticky and hard to handle so be sure to refrigerate either several hours or overnight. Roll on well floured board to 1/2 inch thickness. Cut with cookie cutters to desired shapes-a sun shape or large round circles are best to signify the sun with large cutters working best. Bake at 350 degrees F (180 degrees C) for 8 to 10 minutes or until lightly brown on bottom. Frost with frosting (recipe below)

Frosting-Beat egg whites in clean, large bowl with mixer at high speed until very foamy Gradually add sugar, rind, orange juice and extract. Beat at high speed until thickened. Spread over cooled cookies or put in a pastry bag with a piping tip attached and pipe onto cookies.