Complex sentence: In Caribbean countries such as Puerto Rico and Cuba, "tocino" is made from pork fatback (not pork belly) and neither cured nor smoked, but just fried until very crunchy and added to recipes, much like lardons in French cuisine.
Split into simpler sentences: In Caribbean countries such as Puerto Rico and Cuba, tocino refers to the fat and skin cut from the back, not the belly; this fat is neither cured nor smoked. It is usually fried until very crunchy and added to recipes, much like lardons in French cuisine.