How to Make Yogurt Dip
1.In a bowl, whip the yogurt until it is creamy.
2.Fold in the onion, tomato, green chilli, and salt.
3.Heat the oil in a small frying pan, then add the mustard seeds.
4.Fry for a few seconds until you can smell the aroma, then tip in the peanuts, if using.
5.Fry for a minute, making sure they don't burn.
6.When the mixture has cooled gently add it to the yogurt.