BYRON

BYRON BURGER: £9.50

‘PROPERLY-SOURCED British beef ground fresh into a 6oz patty and cooked medium, so it’s pink and juicy,’ is how Byron describes its burgers. The main one on its menu also has dry-cure bacon, red onion and mature cheddar. Cost of ingredients: £1.90 Mark-up: 400 per cent

MUSHROOM BURGER: £8

A VEGETARIAN alternative, this features a portobello mushroom instead of a beef patty. And not a particularly large mushroom. it also has a large slice of goat’s cheese, which is quite a bit more expensive than the cheddar used in the Byron burger. Cost of ingredients: £1.50 Mark-up: 433 per cent

CHICKEN BURGER: £9

GRILLED CHICKEN breast in a bun, with shredded iceberg, costing a mere 2p, a large slice of tomato, costing 4p, and some red onion. it looks a decent sized burger, but you are only getting 155g of chicken. Cost of ingredients: £1.61 Mark-up: 459 per cent

SWEET POTATO FRIES: £4

Becoming almost as popular as standard potato fries in some outlets, these were a fairly goodsized portion: 225g. But £4 is pretty steep for just a side dish. Cost of ingredients: £1.64 Mark-up: 144 per cent

COLESLAW: £3

COLESLAW is one of the highestmargin dishes you can serve. it’s just shredded carrot, white cabbage and a few onions, covered in mayonnaise, which helps give it a relatively long shelf-life — meaning you don’t have to throw it away at the end of the day. Bryon’s serving was pretty small, weighing 165g. Cost of ingredients: 18p Mark-up: 1,567 per cent BRYON says: ‘we feel the estimate provides inaccurate information for our customers. our menu process reflects this high quality of produce, made fresh daily and served by our hard-working teams.’