Place started batter in bowl. In small dish mix egg, oil, milk. Stir into batter. In small dish mix salt, soda and sugar. Gently fold the mixture into batter. Gently mix. This will cause a foaming and rising action. Allow to stand for a few minutes. To this batter add enough flour, plus ½ tsp. salt for each cup of flour, to form a stiff dough. Turn on floured board and knead, adding flour as necessary until it is a smooth ball with satiny finish. Place in a greased bowl, brush with melted butter, and allow to rise in a warm place for about 1 hour. Punch down, turn out on floured board and knead again, adding more flour if needed. Roll out to ¾-inch thickness. Cut with coffee cup or biscuit cutter; dip each round in melted butter and place, just touching, in dutch oven. Cover. Let rise until nearly doubled (about 1 hour). Bake in moderately hot oven (375°) for 30 to 35 minutes. Serve hot with melted butter or gravy.