“How maths can give you the perfect roast potato” https://www.bbc.co.uk/bbcthree/article/a906e22d-8d73-4ca5-89d7-a1a70bf7cd97

and

“Heston Blumenthal's 10 tricks to the perfect roast potato” https://www.goodfood.com.au/recipes/how-to/heston-blumenthals-10-tricks-to-the-perfect-roast-potato-20160627-gpt0eq

or

Pommes de Terres Sarladaises https://www.thegoodlifefrance.com/sarlat-potatoes-pommes-de-terres-sarladaises/