Now, dirt becomes key ingredient of a full course meal
An expensive French restaurant in Tokyo is serving up fancy meals with a key ingredient - dirt.
According to Japanese news site Rocketnews42, it's a special black soil from Kanuma, Tochigi Prefecture, and it has been tested for safety, News.com.au reported.
Toshio Tanabe, chef at the restaurant Not Ne Quittez Pas, has created a full dirt-infused menu after winning a high-profile cooking contest with his dirt sauce.
His menu includes locally-sourced produce and "minerals of the sea and minerals of the land".
Those visiting his restaurant will have to fork out 110 dollars to be served a first course of potato starch and dirt soup topped with black truffle in a shot glass.
And for second course, there is more dirt. This time in a vegetable salad including eggplant, tomato and turnips. The dirt is included in the dressing, which also contains ground popcorn.
The main course is oriental clams with a top layer of sediment, with a dirt risotto and sauteed sea bass and burdock root.
To finish it off, there is dirt ice cream, a dirt mint-tea with the appearance of muddy water.