Chicken Tikka

Ingredients

• 1 (3 lb.) chicken, boned and cut into 8ths
• 1 tsp. pulped ginger
• 1 tsp. pulped garlic
• 1 1/2 tsp. ground coriander
• 1 1/2 tsp. ground cumin
• 1 tsp. chili powder
• 3 Tbsp. plain yoghurt
• 1 tsp. salt
• 2 Tbsp. lemon juice
• 1 sliced onion
• 1 Tbsp. tomato puree
• red food coloring (optional)
• 3 Tbsp. oil
• 1 lemon, cut in wedges
• 6 lettuce leaves