Spicy Red Lentil and Sweet Potato Soup


Red lentils are a great source of protein and along with the sweet potato this proves a very healthy soup to have at lunchtime. There is no need to fill up on bread either as you will find the lentils are filling enough.


Ingredients

1 medium onion

1 fat clove of garlic

A knob of butter

2 medium carrots

2 sticks of celery

2 large sweet potatoes (about 400g in total)

½ teaspoon cayenne pepper

½ teaspoon cumin seeds

1 litre of vegetable or chicken stock

200g split red lentils

Method