Ingredients
5 cups chicken stock or water
1 cup red lentil
3 medium onions
750 g sweet potatoes
5 garlic cloves
2 teaspoons ground cumin
1/2 teaspoon ground turmeric
1/4 teaspoon cayenne
1/2 cup coriander, chopped (or less to your taste)
1 lemon
salt and black pepper

Directions
1Peel and roughly chop the onions and sweet potatoes - can be chunky.
2Combine with the stock or water, lentils, garlic, cumin, cayenne and turmeric in a pot.
3Cover and bring to the boil. Simmer until the potatoes and lentils are cooked - about 20-30 minutes.
4Puree the soup, adding in the coriander and the juice of the lemon. Add salt and pepper to taste (lots of pepper for me).