Asian Kitchen - Thai Penang Chicken

Thai Penang Chicken:Homemade Red Curry Paste:1 onion2 cloves garlic2 dried red chilies (soaked in a little hot water)A little fresh or dried galangalA small piece of ginger1 tablespoon lemon juice1 lemongrass sprig1/4 cup green coriander2 tablespoons tomato paste2 tablespoons fish sauce or soy sauce (substitute for shrimp paste)1/4 cup vegetable oil1 teaspoon coriander seeds1 teaspoon cumin seeds1 teaspoon brown sugar1 cup peanuts