Recipe can be found @ Zesty South indian Kitchen
What you need
Cilantro /coriander leaves: 1 cup
Grated coconut: ¼ cup
Red onion: 2 tablespoon (chopped finely)
Green chili: 1 no
Red chilies: 2 no
Tamarind: a small piece (adjust to taste)
Olive oil: 2 teaspoon
Mustard seeds: ¼ teaspoon
Urad dal/de-skinned split black gram: 1 teaspoon
Salt: ¼ teaspoon or to taste
Water: 1/4 cup
How I made
In a skillet add a teaspoon of oil and add onion, green chili and red chili and fry for about 4 minutes. To this add grated coconut and fry for another 3 minutes. To this add cilantro and fry until they wilt and change the raw smell. Remove from fire and set aside for cool.
When it is cool enough to touch add tamarind, salt and water to above mixture and grind into a smooth paste and set aside.
In a small skillet add rest of oil and add mustard seeds, urad dal and when mustards seeds starts splutters switch off the flame and add to ground paste.
Enjoy with rice pancake or rice as you wish.