The cooking liquid could easily handle 3-5 legs, but I only had 1. Still, the legs were so large that they needed to go in a 10-liter pot, so I could have easily had more in at the same time. You could also easily add fresh dill to the liquid.
Bring the liquid to a boil.
My large pot wasn't big enough for the entire leg to fit in, so I split it in the middle (see the picture at the bottom).
Although the crab's leg is hard, it is quite jointed. Use, for example, a bread knife to split it. It's easier than you think.
Boil it for 8-10 minutes and stop the cooking by placing the legs in ice water. Dry them well and now clip the shell off. It can shred a bit, so be careful.
I chose to butter-fry the largest piece completely, so we got two different textures.