Icebox Cookies
["1 lb. margarine", "2 c. sugar", "3 eggs, slightly beaten", "5 c. plain flour", "1 tsp. vanilla", "1 tsp. soda in 1 Tbsp. water", "1 c. finely chopped pecans"]
["Mix all ingredients together well.", "Shape into long rolls and freeze until ready to cook.", "Slice thin.", "Bake at 350\u00b0 on ungreased pans until light browned."]
["margarine", "sugar", "eggs", "flour", "vanilla", "soda", "pecans"]