Step 1

Thinly slice your pork belly into bite-sized pieces. Whisk together your soy sauce, vinegar, sugar, sesame oil, mirin, Chinese 5-spice, salt, and pepper. Pour the sauce over the pork belly, place in an airtight container or bag, and marinate for a few hours or as long as 48 hours (I did 48 hours).

Step 2

When you're ready to cook, heat a pan over high heat and add in a tablespoon of vegetable oil. Pour the pork and its sauce into the pan, and stir-fry for 8-10 minutes over medium-high heat, until the pork is cooked through and the sauce is thickened slightly (although it will not thicken much). Add in some snap peas or other veggies halfway through cooking time, if you like. Serve with vegetables and/or rice.