Heat up a heavy bottomed pot and add 4 tbsps vegetable oil. Add onion, 2 pinches salt and cook until golden. Add garlic and ginger, cook until golden brown. Add lamb and mix thoroughly, cooking for 3 minutes on medium heat. Add turmeric, chili powder, ground spices, star anise and mix well, cooking for 5 minutes. Mix occasionally so spices do not burn or stick to bottom of pan.