Then cook for 2 minutes on each side if you want the meat rare (3 for medium rare, 4 for medium, 5 for medium/well done) either on the griddle or transferred to a hot frying-pan. Leave to rest away from any draughts for five minutes before serving.
A salad to go with steak needs to be crisp and ultra-fresh.
These all have different flavours and a richness that differs from table sugar - date syrup and pomegranate molasses has also started to be used in more savoury dishes.
Skegness in the 1980s was no place for a would-be top-flight chef, and at 16, while his parents were away on holiday, Atherton ran off to London.
After stints with Marco Pierre White, Nico Ladenis and Pierre Koffman, he spent a year with Ferran Adrià at El Bulli in Roses, Spain.
The sauce should have a thin ketchup consistency, so add more water if it becomes too thick.
Blend until smooth, taste and season with salt and pepper if necessary.
Swiftly making lunch - grain-fed Casterbridge steak and salad - in his south London house, Atherton explains: "Eating out isn't the luxury it was 20 years ago. The credit crunch will weed out the bad restaurants, but I believe the quality ones will prevail."This conspicuous consumption is in sharp contrast to Atherton's northern upbringing.
He helped to lay tables at his mother's small Skegness hotel, while his father, a joiner by day, ran the hotel bar in the evenings.
Then Gordon Ramsay (Maze is part of the Ramsay empire) recruited him.
Atherton ultimately wants his own name above the door, but says: "When you're in partnership with Gordon Ramsay, you'd be mad not to use his name.
In a bid to eat to lead a more healthy lifestyle, many people choose to cut out sugar from their diet.
Celebrities such as Caroline Flack have boasted about their body transformations being down to no longer eating sugar.
“But I still wouldn’t call it healthy.” According to Rob, date syrup contains around 33 per cent less sugar than table sugar.