• 3-4 Ambula
  • 1 tea spoon of fresh mustard paste
  • 1 cup of yogurt (beaten well)
  • 1-2 Green chillies
  • 1/4 tea spoon Mustard seed
  • 1 sprig of curry leaves
  • 1/4 table spoon oil

Put the ambula in water and let it soften for 1/2 hr.
Mix the salt and mustard paste and yogurt nicely. Add water to yogurt if you like to change consistency.
Heat oil in a pan. Once the oil is hot, add the mustard seed and let it sputter. Add the curry leaves and green chillies and add to the yogurt mixture.

Source – Internet