I recently got 660 Curries and am looking forward to trying a lot of new recipes. One thing I'm having trouble finding is skinned split black lentils, which are in a lot of the recipes I want to try. I suppose I could find them online, but in the meantime, can yellow split lentils be used in their place? They are used in such small quantities, like 2tbs. I can't tell if they're mainly used for flavor, or as a thickener.
Any advise from people with more experience in Indian cooking?