Make your own lard! Slow cook on the stove or in the crockpot. Strain and there you have it! Great for cooking. What is the difference between this and the pork fat? The pork leaf fat will make the lard have a milder flavor, while the pork fat would make it have a bolder flavor. If you're making a pie crust you would want to use the leaf fat. If you're using it to fry up something on the stove then you would want the pork fat.