It works well for cracklins. Trim so that there isn't thick fat on the skin, just a thin layer tops. Simmer in water for an hour, dry well, cut into bite-sized pieces. Bake at 250-300 for about 3 hours. (Can bake till crisp and use as such; they'll be flat, not puffed.) Store the baked pieces till needed then deep fry.
They are delicious freshly fried then used in tacos, with soft corn tortillas and salsa verde.
Note that chicharron are used in Filipino cuisine (as well as eaten as a snack, with vinegar, salt and crushed red pepper and/or minced onion). Try briefly searing some shrimp in oil, removing them when half-cooked; reserve. In the same pan saute some onions, add a little garlic when the onions are ready, and a little ginger if desired. When fragrant, deglaze with a little chicken stock (or, better, stock you made from the shrimp shells), then swirl in some coconut milk and tamarind paste (you can add some blanched vegs--broccoli, e.g.--if you wish at this point), simmer, then add some broken up chicharron and return the shrimp to the pan to finish cooking. Serve over rice.
Along a similar tack: Make a stir-fry of your favorite stir-fry vegs and aromatics. Make a sauce out of chicken stock, tamarind, and a little soy. Make a cornstarch or arrowroot slurry. Cook some rice noodles. Finish the stir-fry with the sauce, adding theslurry to thicken slightly. Toss the noodles with some of the stir-fry, plate, topping the noodles with more stir-fry vegs and sauce, then topping thiswith ground up chicharron.
Alternatively, ground chicharron can be used to thicken sauces, like either of those above, or others. A nice sauce for grilled fish isone of coconut milk and a little tamarind thicked with ground chicharron.
Finely chopped cracklins are great as a salad topping--or anywhere you'd use bacon bits.
I use cured pork skin to line the casserole when I make cassoulet, a great fall/winter dish. It's good in the cassoulet as well, minced finely, it adds great flavor and luscious texture.