Fried Onion chutney

This used to be my mom's favorite chutney, she would invariably make this chutney everytime she make bhakri(jowar rotis). This is a very quick and tasty chutney, goes very well with rotis.

Ingredients:
Onion(red or yellow) - 1 large, diced
Peanuts - 1/4 cup, roasted
Tamarind pulp - 1 tbsp
Chilli powder - 1 tbsp or to taste
Cumin seeds - 1/2 tbsp
Oil - 2 tbsp
Mustard seeds - 1 tsp
Turmeric powder - 1/2 tsp
salt - to taste

Method:
Heat 1 tbsp oil in a kadai, when hot enough add onion and fry till light golden in color and then take it out in a bowl. Grind peanuts to powder, add tamarind, cumin seeds, salt and chilli powder and grind to a paste. Add this paste to the fried onion and mix well. In a small pan heat 1 tbsp oil, when hot enough add mustard seeds and turmeric powder. Take off the heat as soon as the mustard seeds start spluttering and pour it over the chutney. Mix well and serve with rotis.