TV chef Jamie Oliver has launched the third branch of his restaurant chain Fifteen near Newquay in Cornwall.
The Cornish venture is the third of the Fifteen restaurants
Its young chefs are putting their training to the test by preparing a charity lunch for 126 people at the Watergate Bay restaurant on Thursday.
Oliver launched his first Fifteen restaurant in London four years ago with the aim of helping disadvantaged youngsters make a start in life.
The 21 chefs all hail from Cornwall, one of the UK's poorest counties.
All profits from the restaurant will go to the Cornwall Foundation of Promise, established to help youngsters make their mark in the restaurant industry.
The trainees have taken a 12-week training course at Cornwall College - which they will continue while working at Fifteen - and have gained experience with month-long placements at restaurants across the county.
They were picked from some 300 applicants at the end of last year and will all work at the restaurant for 12 months.
Speaking from Fifteen Cornwall on Thursday, Jamie Oliver explained why he had chosen the location.
"Cornwall as we all know is a beautiful place and buzzing in the summer," he said.
"But there are quite a lot of dark rainy less busy months in the off season, there is reasonably high unemployment here and various social problems.
"That's why we're so passionate about this. We're just hoping loads of people will come down and eat with us now."
Rick Stein opened his Seafood Restaurant in Padstow nearly 30 years ago
The director of South West Tourism, Malcolm Bell, said although Cornwall was poor in economic terms it had "massive potential" and that was what Jamie Oliver was supporting.
"There is a huge quality of life here, and it is a county which is going places, not just a place with problems," he said.
The profile the Fifteen restaurant gave Cornwall and the interest it attracted was "critical", Mr Bell said.
Foundation director Mark Scothern said: "Although our work has been going on for some months now, it is exciting to see all the training and preparation coming together.
"There are so many great aspects to this venture that will provide awesome opportunities for everyone involved, particularly young adults from communities in Cornwall that want chances to develop and improve their quality of life."
The 100-seater restaurant, which also has a 12-seater private dining area, is Oliver's latest Fifteen project.
His first opened in Shoreditch, east London, after the nation followed its trials in a Channel 4 TV series.
Since then he has opened another in Amsterdam, and a fourth is due to open in Melbourne, Australia, in September.
Cornwall is no stranger to playing host to high-profile chefs.
Padstow is home to Rick Stein's empire which began nearly 30 years ago with the Seafood Restaurant.
In recent years it has expanded to include a bistro, bed and breakfast and a fish and chip shop, leading to the town being nicknamed "Padstein".