Edge Hotel School at the University of Essex collaborated with the Samuel Whitbread School in Bedfordshire to develop what they think is the perfect formula to create roast potatoes. While calculating the exact measurements might be a bit tedious, the students say the end result is worth it. The key is maximising the surface area of the potatoes, which they do by cutting them at a 30-degree angle. The students then used Heston Blumenthal’s roast potato recipe to cook the potatoes in the oven. Professional chefs tried the roast potatoes, and the results were positive. The technique has become popular as the “Edge Hotel School Method”.