Delicious Rolls
["1 pkg. yeast", "1 c. lukewarm water", "1 c. shortening", "1/3 c. sugar", "1 Tbsp. salt", "1 c. mashed potatoes, freshly cooked and sieved", "2 egg whites, beaten", "5 to 6 c. flour (to make stiff dough)"]
["Dissolve yeast in lukewarm water.", "Mix shortening, salt, sugar and potatoes.", "When cool, add dissolved yeast and egg whites.", "Mix and add flour to make a stiff dough.", "Knead thoroughly and let rise in refrigerator overnight.", "Knead again.", "Make into rolls.", "Let double in bulk.", "Bake at 350\u00b0 for about 10 minutes."]
["yeast", "water", "shortening", "sugar", "salt", "mashed potatoes", "egg whites", "flour"]