Sweet potato and chickpea curry

I made this last night to keep my boy's strength up for couple of busy and stressful days ahead!

You will need to get:
-4 largeish sweet potatoes
-1 onion
-1 tin chickpeas
-Peanut butter
-Cumin and your preferred curry powder
-Cooking oil (I usually use sunflower)
-Tomato puree

And then:
-Chop the sweet potatoes
-Boil the sweet potatoes for half an hour and leave to stand for a bit so they go mushy
-Strain the sweet potatoes
-Heat the cooking oil in the bottom of the pan, add the sweet potatoes, a chopped onion, about a tablespoon of tomato puree and the curry powder
-Stir in the chickpeas
-Add some warm water until the mixture starts to look like soup. Simmer it for a while - stirring occasionally because this stuff can stick to a pan - then add a couple of tablespoons of peanut butter and stir in thoroughly.

Eat with rice. Not pasta this time!