Step 1: Start
Make a slip knot then turn it upside down
Step 2: Weave
Make a loop with the right cord then thread it around a bight from the left cord.
Tighten. Now bight the right cord and thread it through the left bight. Tighten
Step 4: Finish
Thread the string you are working with through the bight. Tighten. Tie an overhand knot. Snip and singe not too close to the knot. Singe each cord separately.
Step 5: Cool Part
To get cord fast undo the over hand knot undo the last weave and pull on both cords