Slice the pork belly into thin squares. Keeping them thin is the key to cooking the meat quickly.
Turn the stove into medium high and heat up a pan. Once ready, pour the sesame oil and add the sliced pork belly in the pan. Fry them until they are browned and cooked. Take the cooked pork belly out of the pan and set them aside.
Add the garlic, chilies and spring onions and cook until fragrant. Turn the heat up and add the cooked pork belly slices, salt and the pepper. Stir to combine evenly.
Take off the heat and transfer in a plate to serve. Garnish with more spring onions, if desired.