Sweet potato and peanut curry

I should be never left in a vegetable market after 8:30. Because if I am, all I end up doing is buying a lot of vegetables that I don't know how to cook, just because they were offered at a bargain price. This recipe is adapted for a couple on the Internet, and we all loved it.

 
Steam about 250 gms of sweet potato till tender (you should be able to insert a fork without difficulty). Peel the skin, cut into discs and keep aside.

Heat some oil in a kadhai, temper with 1 tsp zeera and 1 red chilli, and fry an inch piece of grated ginger. Add the sweet potatoes and stir on low flame till it starts browning.

Add 1/2 tsp chilli sauce, 3/4 cup beaten curd, 1 tsp sugar and salt to taste. Get it to one boil and add about 50 gms of lightly crushed peanuts. Cook for 2 mins on low flame.

Tastes best with rotis, but can also be had as such.