Bring the contents to a simmer until the sauce is sufficiently reduced and thickened to coat the pork cubes (or to your liking)
Serve with coriander/ cilantro leaves as a garnish
Notes
You may also use the inner pot of the Instant Pot to boil the pork cubes in Steps 1 - 2. Just take note that it will take a longer time to bring the water to boil in the Instant Pot.
After setting the pork cubes aside to drain in a colander over a bowl (step 3), wash and dry the inner pot thoroughly before proceeding with step 4.
STOVE TOP METHOD
This dish can be made on the stove top in a heavy-bottomed pan or wok, covered and simmered over med-low heat for about 1.5 - 2 hours, stirring occasionally. Lower the heat and add a splash of water if the dish is drying up before the pork is tender and cooking time is completed. The dish is ready when the pork cubes are tender and coated in a sauce of syrup-consistency.
SERVING SUGGESTION
The pork cubes can be served in a wrap form with Boston lettuce leaves.
Recipe by Provincial Paleo at http://www.provincialpaleo.com/red-cooked-pork-hong-shao-rou-paleo-aip/