A London restaurant that has been a favourite for royalty throughout its 105-year history has been awarded a Michelin star, despite refusing to serve “poncey” food.

The Goring Hotel in central London, which catered to the Queen Mother and hosted the Middleton family before the royal wedding, is one of 15 British entries to earn their first star in this year’s Michelin Guide.

Jeremy Goring, chief executive of the hotel, said that the award was a “happy accident” that had been achieved by serving cuisine that was “vibrant without being poncey”.

Other winners in this year’s edition are The Araki in Mayfair, the exclusive Japanese restaurant that seats nine people at a cost of £300 per head for a meal chosen by the chef. It is one of 23 restaurants in the UK and Ireland to receive two Michelin stars and is the highest rated new entry.

Gordon Ramsay’s Maze Grill restaurant in Mayfair lost a star. Another notable absence from the new guide was Heston Blumenthal’s The Fat Duck in the wake of the chef’s temporary move to Australia.