A scientist claims to have solved the greatest problem facing mankind - with the formula for a perfect chip butty.
Dr James Hind, a statistician from Nottingham Trent University, developed a formula based on survey findings from 2,000 Brits as to how they most commonly create a chip butty.
The academic then experimented around the most popular methods with timings, temperatures and, crucially, portion sizes to refine his recipe.
