1 1/2 cup yogurt
1 tbsp tomato paste
1 tsp grated lemon zest
1 tbsp fresh lemon juice
1 tsp chopped fresh coriander
Salt to taste

Lemon-Yogurt Sauce

1. Mix all the above ingredients in a vessel
2. Blend them to a fine puree.
3. Chill it and serve with fresh coriander on it.