Roast dinners are a staple in UK households, and achieving perfectly crispy potatoes is essential. Chef Poppy O'Toole, known as the 'potato queen,' has tested various techniques to enhance roast potatoes. In her recent TikTok video, she introduced a method that involves parboiling Maris Piper potatoes for 10 to 15 minutes, allowing them to dry, and then coating them in melted goose fat before freezing. This freezing step is crucial as it converts moisture into ice crystals, which helps create a crunchy exterior and a fluffy interior when cooked. After freezing, the potatoes can be cooked directly from the freezer, making them a convenient option for busy roast days. Poppy recommends cooking the frozen potatoes at 180°C for 30 minutes before flipping them and increasing the temperature to 200°C for an additional 20 minutes. The result is a deliciously crunchy roast potato. Poppy's method has gained popularity, amassing over 24,000 views on TikTok, with viewers praising the technique and sharing their own tips for perfect roast potatoes.