Whole Masoor Masala (Lentils in spicy sauce)

This is a recipe from my mother-in-law. Everyone back home loves this dish. It is also very easy to prepare. It can be served with pan polo /Neer dosa , poori , chapati or parantha.

What you will need:
Whole masoor (Black lentils) - 1 cup ( you can even use any other beans)
Potato - 1 small
Onion - 2 small
Garlic - 4-5 pods
Ginger - 1" piece
Coconut - shredded - 3/4 cup
Cinnamon - 1" piece
Black peppercorns - 3 to 4
Green chillies - 5 to 6
Mustard seeds - 1 tsp
Curry leaves - 2 strands
Oil - 2 tsp
Salt to taste

How to prepare
Cook the masoor and potato in a pressure cooker until soft. Peel and cut the potatoes into small cubes. Grind together onion, garlic, ginger, coconut, cinnamon, peppercorns and green chillies into a fine paste.
Heat a pan. Add the cooked masoor, potatoes, salt and the paste. Mix well and bring it to a boil. Heat oil. Add mustards seeds and when they crackle, add the curry leaves. Pour the tempering over the dal.