Meat Masala Grill

1 kg beef or mutton cut into fairly big pieces
2 teaspoons pepper powder
2 teaspoons chillie powder
½ teaspoon turmeric powder
2 teaspoons cumin powder
1 teaspoon garlic paste
1 teaspoon ginger paste
3 tablespoons vinegar
4 onions sliced in rounds
3 potatoes peeled and curt into halves
Salt to taste
3 tablespoons oil
Marinate the meat in vinegar, salt, pepper powder, chillie powder, ginger and garlic paste, turmeric powder, cumin powder and leave aside for about one hour. Heat some of the oil in a suitable pan or pressure cooker and add the marinated meat. Fry well till the meat becomes firm. Add the potatoes and just enough water for the meat to cook. Simmer till all the gravy dries up. Remove the meat and potatoes and keep aside. Add a little more oil in the same pressure cooker or vessel and fry the onions till brown. Add the cooked meat and potatoes and mix well. Simmer for about 5 more minutes then take down. Serve with Bread or chapattis.