Mix Your Cure: Combine kosher salt, pink curing salt (to prevent bacteria and give bacon its pink color), and brown sugar. You can add black pepper for a classic flavor or other spices according to your preference.
Apply the Cure: Rub the mixture thoroughly over the entire pork belly, ensuring every part is covered.
Bag and Refrigerate: Place the pork belly in a large resealable plastic bag or a container. Refrigerate it for 7 days, flipping the bag or turning the meat daily to ensure even curing.