Paneer makhani

Name: Paneer makhani
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: Indian
Ingredients: 2 tsp butter; 2 tbsp vegetable oil; 4 tomatoes chopped, or use a 400g can chopped tomatoes; 1 tsp tomato purée; 6-7 garlic cloves roughly chopped; 4-5 cardamom pods roughly bashed; 1 small cinnamon stick; 1 bay leaf; 4 cashew nuts finely chopped and soaked in water until soft; 1cm piece of ginger peeled and finely grated; 1 tsp red chilli powder such as kashmiri mirch; 1 chilli sliced in half lengthways (optional); 250g paneer cut into medium cubes; 1 tbsp fenugreek leaves; 1 tsp garam masala; 80ml single cream to serve (optional)