cut loin into 1/4 in thick medalons sear in skillet add sliced onion remove pork loin before fully cooked finish cooking onions add pork back to skillet add 1/2 cup vinegar and 1 cup jelly or jam grape apple and apricot ar my favorites but use what u like finish cooking mixing together cooking down vinegar and jam to a syrup sweet and sour loin be careful when u add vinegar it will steam this deglazes the pan