Tarte flambée or Flammkuchen is a type of flatbread with toppings that originated from Alsace. It is reminiscent of Italian pizza but tarte flambée dough does not contain yeasts. Tarte flambée can have a variety of toppings. The most well-known is the one with bacon, onion, and crème fraîche. This recipe was inspired by the Forestière variety of tarte flambée with mushrooms as a topping. Arguably the holy grail of mushrooms of the spring season are morels (Morchella). They have a very short season from late March until May (in Europe). Morels are a family of mushrooms with different subvarieties.