Fondant au chocolat
Molten chocolate cake is a French dessert that consists of a chocolate cake with a liquid chocolate core. It is named for that molten center, and it is also known as mi-cuit au chocolat, chocolat coulant , chocolate lava cake, or simply lava cake. It should not be confused with fondant au chocolat, a recipe that contains little flour, but much chocolate and butter, hence melting on the palate (but not on the plate). French chef Michel Bras said that he invented the cake in 1981, after two years of experimentation, with his original inspiration being a family group warming themselves up after a skiing trip by drinking hot chocolate. French chef and chocolatier Jacques Torres confirms that such a dessert existed in France in the 1980s. French chef Jean-Georges Vongerichten, for his part, said that he invented the dish in New York City in 1987. He recalled pulling a chocolate sponge cake from the oven before it was done and finding that the center was still runny, but warm with both a good taste and texture. He has been credited with popularizing the molten chocolate cake in the United States, where it became an almost de rigueur inclusion on high-end restaurant dessert menus in the 1990s.
Source: Wikipedia