In a large mixer bowl, combine 2 cups flour, sugar, yeast and salt. In a saucepan, heat water and butter to 120°-130°. Add to dry ingredients; beat until blended. Add egg; beat on low speed for 30 seconds, then on high for 3 minutes. Stir in enough of the remaining flour to form a stiff dough. Do not knead. Cover and let rise in a warm place until doubled, about 30 minutes., Stir dough down. Fill 12 greased muffin cups half full. Cover and let rise until doubled, about 15 minutes., Bake at 350° until golden brown, 15-20 minutes. Cool for 1 minute before removing from pan to a wire rack. Brush tops with melted butter. Freeze option: Freeze cooled rolls in airtight containers. To use, microwave each roll on high until warmed, 30-45 seconds.