Marinate the pork and chicken pieces in pineapple juice, soy sauce, vinegar, laurel leaf and pepper for 2 hours.
Remove the pork and chicken and set aside.
Heat oil in a pan and sauté the garlic and onion.
Add the marinated pork and chicken along with the marinade. Allow to simmer until the sauce has thickened.
Serve topped with pineapple slices.