Jelly Doughnuts
["2 packages (1/4 oz. each) active dry yeast", "1/2 cut warm water (110~ to 115~)", "1/2 c. warm milk (110~ to 115~)", "1/3 c. butter, softened", "1 1/3 c. sugar, divided", "3 egg yolks", "1 tsp. salt", "3 3/4 c. all-purpose flour", "3 Tbsp. jelly or jam", "1 egg white, beaten", "Oil for deep-fat frying"]
["In mixing bowl, dissolve yeast in warm water.", "Add milk, butter, 1/3 cup sugar, egg yolks and salt; mix well.", "Stir in enough flour to form a soft dough (do not knead).", "Place in greased bowl, turning once to grease top.", "Cover and let rise in a warm place until doubled, about 1 1/2 hours."]
["active dry yeast", "water", "warm milk", "butter", "sugar", "egg yolks", "salt", "all-purpose", "egg"]