Roasting potatoes in duck fat makes the thickest, craggiest, CRUNCHIEST roast potatoes, in a way that no oil can compare! In actual fat, cooking with duck fat has been a staple in French cooking since the beginning of time. The French understand that duck fat is like bacon – it just makes everything taste better!
https://www.recipetineats.com/duck-fat-potatoes-crispiest-best-roast-potatoes/

