It's easy, all you have to do is order the non-cheese variety (e.g Original Whopper) and then you tell them to add a slice of cheese.

The difference between these two is an extra 85p!
'I'd like a Whopper With Cheese'
'I'd like a regular Whopper. Add cheese' --- CHEAPER!

Here comes the maths...

The difference in price between a regular Whopper and a Whopper With Cheese is £1. The only physical difference between the two burgers is a slice of cheese.A slice of cheese from the BK menu only costs 15p.

1.00 - 0.15 = 0.85

Works with all varieties of 'with cheese' burgers. You can also try it with bacon.

Colin Haywood eats more fast food than is good for him.