In a large bowl combine 1 cup yogurt, 1tbsp olive oil, 1 clove of garlic, ¼ tsp turmeric,1/ 4 tsp crushed red chili, ¼ tsp garam masala, ½ tsp salt, ½ tsp cumin & juice of 1 lemon. Place chicken in marinade and toss to coat. Cover and refrigerate 8 hours or overnight.2. Remove the chicken from the marinade. Reserve marinade.3. In a large pan, cook chicken over medium heat until it browns slightly.4. Add 1 onion and cook, Pour 1 cup coconut milk and marinade over the top, stir. Bring to a boil and then reduce heat.Simmer for 30-35 minutes or until chicken is cooked through.5. Stir in coriander just before serving.