OK here goes:
While I did not "create" it, I do love using it. I was taught to do the "French fold" but hate to hand sew - mine just does not look nice.
This method uses that same basic principle of a strip folded in half, sew on one side and folded around to the other and sewn again. My folded binding usually measures 1-1/4"
The trick is that you make and 1/4" pipe or mini border that will show on the front. Here's how I do it.
Cut the piping color strips 2-3/4" wide (green). Cut the rest of the binding strips 2-1/4" wide (yellow). Sew the two colored strips together pressing the seam toward the piping color.
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Next, fold the piping colored strip (green) over the seam so it leaves a 1/4" showing when you look at the rest of the binding (yellow).
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Even up the raw edges if necessary the sew to the back of the quilt with the piping color facing you (green). Flip it to the front and "stitch in the ditch" between the two colors. Here is one in use on a baby quilt.
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I hope that explains it well enough for you.