On floured surface, knead dough about 25 times until smooth. Divide dough into 3 equal parts. Roll each part into 12-inch rope. Place ropes together on cookie sheet. Braid ropes gently and loosely, starting in middle; do not stretch. Punch ends; tuck ends under braid securely. Cover loosely; let rise in warm place (80°F to 85°F) until doubled in size, 30 to 40 minutes.