To make Peas Usal, you need:Green peas - 2 cups (I used dried peas, so I soaked it in the morning and used it in the evening)
Coconut - 1/2 cup, grated
Green chilli - 2 or 3
Corriander leaves - 1/2 cup
Cumin seeds - 2 tsp
Oil - 2 tsp
Garlic - 3 cloves
Salt
Sugar
Mustard seeds - 1/2 tsp
Turmeric powder - 1/2 tsp
Asafoetida - a little
Amchur powder - 1/2 tsp
Cook the peas with some salt and set aside. Grind the corriander leaves, coconut and cumin seeds to a smooth paste, adding a little water if needed. Heat the oil. Add mustard seeds, asafoetida and turmeric powder to it. When the seeds pop, add the peas, salt, sugar and the ground mixture. Cook for a few minutes until the mixture thickens. Add the amchur powder. Stir well and boil for a minute or two.
Serve hot with rice or rotis.

Notes:
- The original recipe called for lemon juice. However, I absolutely L.O.V.E amchur powder. These days I use it in a lot of dishes. I would probably up the amount of amchur the next time I make this dish.
- No sugar next time around. The peas and the coconut lend a sweetness to the dish....and additional sugar, however minimal, is not necessary.
- The usal was a very simple, not-too-hard-to-whip-up accompaniment which tasted good without leaving an oil trail all the way from the mouth to the stomach.