Chicken Curry, Bombay

Ingredients

• 1 roasting chicken weight 4 lb. (about 2kg), cut into pieces
• 3 large onions
• 4 tablespoons vegetable oil or chicken fat
• 3 teaspoons crushed ginger
• 1-1/2 teaspoons crushed garlic
• 12 whole fresh red chilies
• 2 and a half teaspoons coriander powder
• 1 teaspoon cumin powder
• 1/2 teaspoon turmeric
• Salt, pepper
• 2 tablespoons vinegar
• 2 teaspoons sugar