Melt 1 stick butter, mix with 1/3 cup cooking oil and 1 medium onion, grated. Sprinkle 1 (4 pound) chicken, cut in pieces, with salt, pepper and paprika. Dip chicken in butter mixture and put in large broiler pan. Pour remaining butter over chicken. Cover pan with foil and put on bottom rack of oven and bake at 350 degrees for 30 minutes. Take foil off and bake on top rack of oven for 30 minutes.