Secret Santa
I don't think the flames are intended, but are a by product of needing to cook at speed (and therefore high temp.). There is some chemical reaction as the liquid rapidly evaporates. this happens most effeciently during flambe. Watching the pros, they often have anumber of pans on the go at one time. they can't all be flaming and some are just bubbling rapidly. however, when chef turns attention to a particular pan, then he'll get the big spoon in and agitate the pan (often causing flames). A simple test at home on a very high heat confirms this is possible, just using onions, garlic, spice mix and small amount of water. remember that water in hot oily pans is not a good mix, so expect a reaction (of a flaming variety). Get your nose ready for that toffee!!