Restaurant Style Butter Chicken

Name: Restaurant Style Butter Chicken
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Ingredients: 2 tbsp oil; 1 large red or brown onion (chopped); ½ tsp minced ginger; ½ tsp minced garlic; 2 dried bay leaves; 1 tsp ground cumin; 2 tsp garam masala; 1 tsp red chili powder; 2 tbsp butter; Juice from 1 small lemon; 2 tbsp tomato paste; ½ cup cream; 1 tbsp natural yogurt; ¼ cup milk; 500 g boneless chicken (cut into cubes (I used thigh fillet)); ¼ tsp ground fenugreek; 6 - 8 cashew nuts (ground (optional)); Coriander leaves (to garnish); Naan, or basmati rice ( to serve)