Surprise he said. I couldnt tell what made the aloo palak so tasty and tangy. " Tomatoes?" "We dont have tomatoes" Besides we shouldnt cook tomatoes with palak, so thats out. "Aamchur?" "we dont have amchoor". Since I couldnt guess anymore... lemon Sanjay Thumma's trick. The aloos could have used some more cooking and yet the lemon was the selling point.