One important thing is that this only works if you are using a fourway-stretch, like lycra or spandex. For anything else you need to create a pattern with a piece called a "flechette" and is the extra fabric that goes between the fingers in order to make the glove big enough and also make it possible to move the fingers.
I started with simply tracing my own hand and wrist on paper.
I cut out two pieces and pinned them together. I sewed Everything together with a fairly tight zigzag stitch. It would probably be even better to use an overlock stitch, but I don't have yellow thread for my serger and something is wrong with my regular machine so I can't choose any of the "b"-side seams.