The secret to so many incredible Indian inspired dishes is a classic spice blend called garam masala. Every families version is different, and is tailored to their preferred tastes. I don't include any dried chilli in mine as I like to control the fiery heat within my dish. However, you can always tweak this to suit your palette. It really is THE hero spice blend every store cupboard requires. Yes you can buy this in every supermarket. However I find them very bitter and sometimes quite flavourless. Make sure to buy whole spices for this recipe. They have a very long shelf life and are always on hand to knock up a batch of fresh garam masala when needed.