Mix yeast and warm water together; add melted margarine; beat eggs and add to yeast, water, and margarine. Add sugar, and four cups flour, mixing one cup at a time. (I do not use any special brand of yeast or flour; whatever is on sale).
Bake in muffin tins; fill 3/4 full. Bake at 425 degrees for 15 - 20 minutes.