Opor Daging - beef stewed with pineapple and potato

Opor Dagingbeef stewed with pineapple and potatoBahan-bahan:ingredients:400 g beef (shank)100 gr pineapple200 gr potato2 red lomboks2 cm lengkuas/laos/galangal200 ml thick coconut milk (kental, from 1 coconut)700 ml thin coconut milk (encer, from 1 coconut)1/2 tsp vinegaroilHaluskan:bumbu:5 shallots3 cloves of garlic1 tsp ketumbar1/2 tsp terasi/trasi, toasted1 tsp salt1 tsp palm sugarCara membuat:preparation:Cut the meat into small cubes. Cut the pineapple into cubes. Cut the potato into cubes. Deseed the lomboks and cut them into rings. Pound or grind the ingredients for the bumbu into a paste. Heat the oil in a pan and fry the potato until brown and set aside.Heat in a pan the thin coconut milk together with the lengkuas, the bumbu and the meat and cook until the meat is tender and nearly done.Then add the pineapple, the potato, the lomboks and the thick coconut milk and cook until the sauce has thickened. Then mix in the vinegar and cook briefly. Serve.