How to make AMAZING Indian Takeout at home (TIKKA MASALA)

Tikka Masala Spice Blend:
•10g (1T) cumin
•10g (1 1/2T) paprika
•10g (1 1/2T) curry powder
•10g (1 1/3T) garam masala
•3g (2T) Chile flake

Chicken Marinade:
•2.5lb/1kg boneless skinless chicken thighs (about 12)
•Half of the tikka masala spice blend (above)
•Olive oil
•200g (3/4c) plain Greek yogurt
•20g (1T) salt
•Juice of half a lemon (about 20g)
•20g (4 cloves) grated garlic
•20g (1T) grated ginger

Masala Gravy:
•1 large peeled whole onion, grated
•20g (4 cloves) grated garlic
•20g (1T) grated ginger
•1 small serrano chile, diced (about 30-40g)
•30g (2T) ghee or olive/coconut oil
•Strong pinch of salt
•Other half of tikka masala spice blend
•1 can (28 oz/790g) crushed tomatoes
•3g (1/2t) salt
•5-7g (1-2tsp) sugar
•250g (1c) heavy cream