I've used this recipe for over 30 years. Can't remember where I got it.

1	C	Butter or Margarine
3/4	C	Sugar
3		Egg yolks
1/4	tsp	Almond Extract
2 1/2	Tbs	Rum
1/2	tsp	Vanilla
2 1/2	C	Unsifted flour

Cream butter and sugar until light. Beat in egg yolks, flavorings and rum. Gradually add flour, kneading in the last cup, if necessary. Shape into rolls about the size of a silver dollar, wrap in wax paper and store in refrigerator overnight. When ready to bake, cut in 1/4" slices and roll to form a ball. Roll balls in a mixture of 1/4 C Sugar and 1 1/4 Tbs Dried Orange Peel. Bake at 350 degrees for 10-12 minutes. Store in an airtight container.