Scrapple…If pan frying, drop it and don’t touch it until the grease is bubbling up heavy through the top side. That’s when it’s ready to be flipped. If properly cooked it’ll release itself from the pan and not stick. If it starts to stick, break, or crumble on you, ease the spatula out and let it go longer. Cook an equal, or just slightly less than equal, amount of time on the second side as the first side took. You want the surface uniformly crispy and the center soft yet, but not mushy. I love it deep fried though, that’s how it’s best IMO.
Pork roll is easy. Cut a couple slits, melt a tablespoon of butter in a fry pan and cook each side until it’s just a little browned.