season the rib with garlic, vinegar, salt, mixed seasoning and grill seasoning Leave for 15 minutes to get the seasoning.
Heat a pressure cooker with oil and throw the rib. Keep sautéing until it stops releasing water. Add the tomato, onion and pepper and stir. Finally, add the tomato paste, the meat broth and the hot sauce. Let it cook for 30 minutes. Open the pan and add the cut potatoes, let it cook for another 10 minutes without pressure. Finally add the watercress and cook for another 5 minutes. Serve immediately