Slow Cooking - This recipe is all about slow cooking everything to get the most flavour into each layer, so take your time with it. Caramelising onions - means you get the most deliciously sweet flavour out of them but keep an eye on them to make sure they don't burn. If your onion haven't coloured after 30 minutes, remove the lid, turn the heat up and keep an eye on them stirring at regular intervals until they are a deep golden brown.Whole Garam Masala - Cooking this in the oil with the o...
