Peanuts : 1/4 cup
Onion : 3 nos
Tomato : 3 nos
Red chillies : 5
Tamarind : a pinch
Dry roast peanuts in a pan for few minutes on low flame , remove from flame , let it cool and remove the skin off.
Heat 1 tbsp oil in a pan , add chopped onion , chopped tomato , red chillies , tamarind and fry them until the onions turn a medium brown colour.
Switch off the flame , let it cool .
Grind to a paste and serve with dosa / Idli