Made this following Chewytikka's video and using his base sauce. First 5 attempts at this produced something which I thought was a bit oily. Had trouble getting the sauce to thicken. Cut back on the oil to a half chef's spoon and started getting great results - lovely, thick, rich sauce. With less oil in the pan once I put the spices in after the tomato dilute I get more of a paste in the pan. Seems to work for me and the resulting curry is nice and hot. It's very quick to cook - 8 mins for this one I think. Get great pleasure from eating it and love the cooking process too. Want to try his Jhal Frezi next but having problems finding the patak pastes to make the red masala.