Well, there are two recipes that I use for bunnies, they will do for squirrel too, though if you have rabbit I can't think of a good reason to fool with the squirrels
I dress the rabbits out, skin, and completely clean the body cavity, split chest and take the hear, lungs etc out. Ditto the pelvis, split and clean out. The cleaned and quartered carcases are then simmered in water with a few herbs (mostly Thyme) until they are tenderish. After draining and cooling they can be easily de-boned without much wasteage.
I have tried a bunch of things with the meat after that. My current favorite is to fry up some bacon, wilt some chopped onion and put it all in a pan with some chicken stock, tomato paste, a couple gloves of chopped garlic, some paprika, cayene, and some comercial barbecue seasoning. Then simmer for about 45 minutes.
The problem with rabbits, as I have found it, is that they vary so much. Quantities and times change depending on the victim's age.

Second recipe. Remove bunnies head, but only if you want to, gut, remove all innards, don't skin, season body cavity to taste, coat in clay, lay a fire about the "bunny-ball", light and wait for fire to die down, call it an hour or tow. Clean away fire, break into ball, eat!
Honestly, it ain't bad! Very tender.
Bon-apetite