Pork Sauté in caramelized sauce

Ingredients:
1kg sliced Pork meat (I used Pork Shoulder Picnic, pork belly is also perfect)
4 tbsp oil
100 g sugar
120g peanuts
1 tbsp soy sauce
Salt and pepper (as needed)
50g cubed butter

Method:
Heat oil in a wok or a wide skillet, stir fry the pork slices, on high flame until brown. Remove and set aside.
Add the sugar in the same vessel along with 100ml water, let it caramelize. Add the meat and the peanuts and stir well. Add the soy sauce, salt and pepper. Rectify the taste if necessary and cook on low flame for about 25 minutes.
Add 50 g of cubed butter and stir well. Serve hot with rice.