Add lentils and continue to cook. Stir in flour. Once a brown crusty goodness has formed on the bottom of the pan (not to be confused with burning), turn up the heat and cool down with water. Scrape the pan and blend. Add spices. I should have measured this, as my dish turned out too spicy. It wasn't ruined, but it took away from an otherwise flavorful dish. Let bubble.
Blend in a dollop of yogurt.
Stir in milk. Cook down to the consistency that you want.
At the end you could add some frozen peas. I didn't.
Serve over egg noodles or whatever you like.
Recipe by Two People & A Cat at http://twopeopleandacat.com/603/