Sour cream Yeast Rolls TOH

In a large bowl, combine 1 1/2 cups flour, sugar yeast and salt. In a small saucepan, heat the sour cream, water and 2 tbsp butter to 120 to 130 degree. add to dry ingredients. Beat on medium speed for 2 minutes. Add egg and 1/2 cup flour, beat 2 minutes longer. Stir in enough remaining flour to form a soft dough. Turn onto a floured surface, knead until smooth and elastic, about 6-8 minutes. Place in a greased bowl, turning once to grease the top. Cover and let rise in warm place until doubled, about 1 hour. Punch down dough. Turn onto a lightly floured surface, divide into 12 pieces. Shape each into a ball. Place in a greased 13x9 baking pan. Cover and let rise until doubled, about 30 minutes. Bake at 375 for 25-30 minutes or until golden brown. Melt remaining butter, brush over rolls. Remove from pan a wire rack.