Ingredients for 4 servings

1 red onion, chopped
1 tbsp olive oil
2 tsp cumin seed
4 tbsp 0% Greek yogurt, to serve
140 g red split lentils
200 g can chickpeas or ½ a can, rinsed and drained (freeze leftovers)
400 g can tomatoes, whole or chopped
850 ml vegetable stock or water
large pinch chilli flakes
small bunch coriander, roughly chopped (save a few leaves, to serve)

Directions

Heat a large saucepan and dry-fry the cumin seeds and chilli flakes for 1 min, or until they start to jump around the pan and release their aromas. Add the oil and onion, and cook for 5 mins. Stir in the lentils, stock and tomatoes, then bring to the boil. Simmer for 15 mins until the lentils have softened.

Whizz the soup with a stick blender or in a food processor until it is a rough purée, pour back into the pan and add the chickpeas. Heat gently, season well and stir in the coriander. Finish with a dollop of yogurt and coriander leaves.