Measure into bowl, 1 cup lukewarm water. Stir in 1 tsp sugar; sprinkle with the pkg of yeast. Let stand for 10 minutes, THEN stir well. Add 1 tsp salt & 1/4 cup oil; stir in 1 1/2 cups flour. Beat until smooth. Stir in additional 1 1/4 cups flour. Turn out dough on a lightly floured work surface. Knead until smooth & elastic. Place in a greased bowl; brush top with melted butter. Cover. Let rise in a warm place free from draft until doubled in bulk, about 45 minutes.