I was first introduced to tarte flambée, which comes from Alsace, with the explanation that it’s France’s answer to pizza. In fact, though, it’s not much like pizza at all – apart from being very thin and savoury. As it is made with unleavened dough it bakes very crisply indeed, which is its great quality. Why it isn’t as famous as pizza escapes me. It comes in rounds or rectangles but I find rectangles are more convenient, as you can fit two on a standard domestic oven baking sheet.