Place the lentils in a large pan with
400ml water. Add turmeric and tamarind
and boil for 25-30 mins until very soft.
Meanwhile, heat the oil in a frying pan
and gently fry the shallots for 8-10 mins.
When softened, add the spices, curry
leaves, chillies and a good pinch of salt.
Cook for another 2 mins, until fragrant.
Boil another pan of salted water and
cook the beans for 4 mins until tender,
then drain well.
Once the lentils are cooked, add the
shallot spice mix and the beans, stir well
and add more seasoning if necessary.