Potato

1With your right hand, pull about 1' of rope off to the right, behind the upline.

2With your left hand, pull about 1' of rope off to the left, behind the upline.

3With your right hand, pull another 1' of rope off to the right, behind the upline.

4Grab the rope end with your left hand and equalize the rope on both sides of the upline.

5Using all the rope from both sides, tie a large overhand knot in front of the upline.

OPTION6If you have enough rope, you can tie a second overhand knot, making a square knot.