• 4 boneless chicken thighs, cut into bite-sized chunks
• 1 tbsp plain yoghurt
• 1 tbsp lemon juice
• 2 garlic cloves, grated
• 1 tsp grated ginger
• 1 tsp ground cumin
• 1 tsp garam masala
• 1/2 tsp ground turmeric
• 1/2 tsp smoked paprika
• 1/4 tsp chilli powder
• Salt, to taste

For the sauce:

• 2 tbsp butter
• 1 tbsp neutral oil (sunflower or rapeseed)
• 1 small onion, finely chopped
• 2 garlic cloves, grated
• 1 tsp grated ginger
• 1 tsp ground coriander
• 1/2 tsp chilli powder (adjust to taste)
• 1 tsp garam masala
• 1/2 tsp ground cinnamon
• 300ml passata or blended tinned tomatoes
• 100ml double cream
• 1 tbsp sugar (optional, for balance)
• Salt, to taste
• Extra butter or cream for garnish (optional)