Dab meat dry and cut into cubes. Peel and finely dice the ginger. Mix with the meat.
Peel and finely dice the onion and garlic. Grind or finely chop the peanuts. Mix well with lemon juice, soy sauce, sugar, sambal, coriander and cumin. Mix in the meat. Cover and chill overnight.
Clean, wash and cut the leek into fine strips. Drain the meat well (keep the marinade). Fry the meat in hot oil in portions. Fry the leek briefly.
Add all the meat again. Add marinade, sweet soy sauce and approx. 1⁄8 l water. Cover and stew for 15-20 minutes, turning frequently. Wash and pluck the coriander and fold into the goulash, except for a little garnish.
Season goulash, arrange and garnish with coriander. Serve with rice and krupuk (crab chips). Drink: cold beer.