Lentil & cardamom soup

Name: Lentil & cardamom soup
Prep time: 5 min
Cook time: 20 min
Total time: 25 min
Cuisine: British
Ingredients: 1 large onion , finely chopped; 2 fat garlic cloves , crushed; 1 large carrot , finely chopped; thumb-sized piece of ginger , peeled and finely chopped; 2 tbsp oil , sunflower, rapeseed or groundnut all work well; ½ tsp turmeric; seeds from 10 cardamom pods; 1 tsp cumin , seeds or ground; 100g red lentils; 400ml can light coconut milk; zest and juice 1 lemon; pinch of chilli flakes; handful of parsley or coriander, chopped