I made some placemats for my mum and dad as a pressie and the binding gave me an opportunity to test out this technique I picked up in a course on Craftsy
by Wendy Butler Berns.
Hopefully the gif will give you the how to! In short:
Cut the strips 2 1/4” wide. Cut the starting end on the diagonal.
After pressing the raw edge under fold in half and proceed as the gif shows.
Remember to start sewing a bit away from the starting point and end likewise to easier tuck the end in before the final splice. Remember to avoid “nostrils” in the corners and top stitch for an all machine and thereby fast finish!