I like a stew pot (dutch oven will do) and slow cooking with liquid, spices, and vegies until falling off bone. A little butter and flour whisked in to thicken, and heaven in a pot.
It is a good idea to have practice doing this ,so that you know what healthy organs look like. Ignorance is not your friend. I cut my teeth on learning to clean fish first. Important to note is not puncturing the gallbladder or stomach/digestive system for that matter. also before getting started examine for fleas and ticks. these are the critters that carry disease. Usually these jump off after circulation has ceased.