preparation time :15 minutes.
onions - 1,
tomatoes - 2,
red chillies - 3,
mustard - 1/4 teaspoon,
oil - 1 teaspoon.
salt - as desired.
Grind the onion, tomatoes, and red chillies with little water and salt.
keep it aside.
heat the kadai, pour the oil, put mustards,
after 1 minute, pour the ground ingredients in the kadai.
add water as per your consistency.
heat it for 10 minutes.
This is the one which is served hot with idli or dosa.