Prepare the BBQ – preheat and wait for the coals to turn grey/white. If you have a kettle BBQ, then cook this on a higher level - if you have no adjustment then use the wire grid from your grill pan and raise the height of the grid from the coal. The grid can be raised using a heatproof material, e.g. scrunched tin foil or garden stones – make sure it’s safe and secure before you start.
Don't cook too quickly. (If it starts to burn and catch, you are too close to the coals, so either move further away, or turn down if its gas and adjustable).