How to Cook: Roast Potatoes
How to Cook: Roast Potatoes is a medium British recipe that serves 4. 350 calories per serving. Recipe by Adam Byatt on YouTube.
Prep: 25 min | Cook: 1 hr 20 min | Total: 2 hrs
Cost: $15.22 total, $3.81 per serving
Ingredients
- 2 kg Maris Piper Potatoes (peeled and cut into even wedges)
- 200 g Duck Fat (melted; used generously for roasting)
- 2 tbsp Maldon Sea Salt (coarse flaky salt)
- 2 tbsp Fresh Thyme (leaves only, chopped)
- 1 head Garlic (cloves peeled, left whole)
- 1 tbsp Fresh Rosemary (optional) (chopped; optional for pork roasts)
Instructions
Peel and Cut Potatoes
Peel the potatoes from top to bottom, then cut each potato into even wedges using a very sharp knife to create smooth surfaces.
Time: PT10M
Soak in Salted Cold Water
Place the cut potatoes in a large bowl of cold water, add the sea salt, and let sit briefly. Do not wash after peeling.
Time: PT5M
Parboil Potatoes
Drain the potatoes, return them to a large pot, cover with fresh cold water, bring to a boil and cook for about 20 minutes until the edges are just tender but the centre is still firm.
Time: PT20M
Drain and Steam Dry
Drain the potatoes in a colander, give them a gentle shake, then spread them on a clean kitchen towel and let sit for 10 minutes to steam off excess moisture.
Time: PT10M
Preheat Oven and Fat
Pre‑heat the oven to 190°C fan. Place the heavy roasting tray inside and add the duck fat, allowing the tray and fat to heat up for about 15 minutes.
Time: PT15M
Temperature: 190°C
Combine Potatoes with Fat, Garlic and Herbs
Carefully remove the hot tray (use oven mitts), add the potatoes, whole garlic cloves, and a drizzle of extra duck fat if needed. Toss gently to coat.
Time: PT2M
First Roast
Roast the potatoes in the oven for 30 minutes, turning once halfway through to ensure even colour.
Time: PT30M
Temperature: 180°C
Second Roast and Finish
After the first 30 minutes, turn the potatoes again, sprinkle a little more sea salt, and roast for another 30 minutes until crisp and golden. Finish with chopped fresh thyme.
Time: PT30M
Temperature: 180°C
Serve
Remove the tray, let the potatoes rest a minute, then serve hot as a side to roast beef, chicken or pork.
Time: PT2M
Nutrition Facts
- Calories
- 350
- Protein
- 5g
- Carbohydrates
- 45g
- Fat
- 15g
- Fiber
- 4g
Dietary info: Gluten-Free, Dairy-Free, Paleo-Friendly
Allergens: Duck
Ingredient Substitutions
- Instead of Maris Piper Potatoes: Russet potatoes, Yukon Gold potatoes
- Instead of Duck Fat: Goose fat, Beef dripping, Olive oil
- Instead of Maldon Sea Salt: Kosher salt, Table salt
- Instead of Fresh Thyme: Fresh rosemary
- Instead of Garlic: Garlic powder
Equipment Needed
- Large Pot
- Colander
- Heavy Roasting Tray
- Oven
- Sharp Chef's Knife
- Cutting Board
- Kitchen Towel or Cloth
- Tongs
Critical Steps — Do Not Skip
- Cut potatoes evenly with a sharp knife to maximize surface area.
- Parboil potatoes just until the edges are tender but the centre remains firm.
- Allow potatoes to steam dry for 10 minutes before roasting.
- Pre‑heat the roasting tray with duck fat in the oven until very hot.
- Roast without overcrowding and turn halfway for even crispness.
Chef Tips from the Video
- Use a very sharp knife – a clean cut creates more surface for browning.
- Cold‑water soak removes excess starch, leading to a fluffier interior.
- A heavy‑base tray retains heat better than thin baking sheets, giving a superior crust.
- Generously coat the potatoes in duck fat; the fat is the flavor and crisping agent.
Troubleshooting
Potatoes are soggy after roasting.
Make sure the tray and fat are hot before adding potatoes, and give the potatoes a full 10‑minute steam‑dry period. Increase oven temperature or extend the final roasting time.
Potatoes fall apart during boiling.
Boil only until the edges are just tender; test with a knife. Over‑cooking makes them mushy and unable to hold shape.
Not enough crispness on the outside.
Use plenty of duck fat, avoid crowding the pan, and finish with a brief high‑heat blast (200°C for 5 minutes).
Storage
Refrigerator: Store leftovers in an airtight container for up to 3 days; reheat in a hot oven to regain crispness.
Freezer: Cool completely, then freeze in a single layer on a tray before transferring to a freezer bag; reheat directly in the oven for 15‑20 minutes.
Room temperature: Do not leave at room temperature for more than 2 hours.
Make-Ahead Tips
- Parboil the potatoes a day ahead, cool, and store in the fridge; add directly to the hot tray when ready to roast.
- Duck fat can be pre‑melted and kept refrigerated; bring to room temperature before use.
Frequently Asked Questions
What is the cultural significance and history of roast potatoes in British cuisine?
Roast potatoes are a cornerstone of the traditional British Sunday roast, symbolising comfort and family gatherings. The practice of roasting potatoes in animal fat dates back to the 19th century when beef dripping and later duck or goose fat were used to achieve a crisp exterior.
What regional variations of British roast potatoes exist across the United Kingdom?
In Scotland, potatoes are often roasted in beef dripping, while in England many cooks prefer duck or goose fat for extra richness. Some Welsh households add rosemary, and in the North of England a sprinkle of malt vinegar is sometimes used for tang.
How are traditional British roast potatoes traditionally served at a Sunday dinner?
They are typically served hot and golden alongside roast beef, chicken or pork, accompanied by gravy, horseradish, and seasonal vegetables like carrots and peas. The potatoes are placed on the same platter as the meat to soak up the juices.
What occasions or celebrations are roast potatoes traditionally associated with in British culture?
Roast potatoes feature prominently at Sunday family meals, Christmas dinner, and holiday gatherings such as Easter and Thanksgiving‑style feasts in the UK. They are considered an essential component of any celebratory roast.
What makes this roast potato recipe special compared to other British roast potato methods?
Adam Byatt emphasizes three key steps: cutting with a sharp knife for maximum surface area, parboiling just until tender, and using a hot heavy tray loaded with duck fat. This combination yields an ultra‑crispy exterior while keeping the interior fluffy.
What are the authentic traditional ingredients for British roast potatoes versus acceptable substitutes?
Traditionally, starchy potatoes (Maris Piper or King Edward), duck or goose fat, and coarse sea salt are used. Acceptable substitutes include beef dripping, olive oil, or other high‑smoke‑point oils, and other starchy potatoes like Russet or Yukon Gold.
What other British dishes pair well with these roast potatoes?
They pair perfectly with classic roast beef, roast chicken, pork loin, lamb roast, Yorkshire pudding, and gravies. A side of steamed greens or Brussels sprouts completes the traditional plate.
What are the most common mistakes to avoid when making roast potatoes at home?
Common errors include over‑boiling the potatoes, using a cold pan, overcrowding the tray, and skimping on fat. Each mistake leads to soggy or unevenly browned potatoes.
Why does this roast potato recipe use duck fat instead of olive oil?
Duck fat has a higher smoke point and imparts a richer, buttery flavour that helps create a deep golden crust. Olive oil can burn at high oven temperatures and doesn’t give the same luxurious mouthfeel.
What does the YouTube channel Adam Byatt specialize in?
The YouTube channel Adam Byatt focuses on straightforward, technique‑driven home cooking tutorials, often highlighting classic British dishes and practical tips for everyday cooks.
How does the YouTube channel Adam Byatt's approach to British cooking differ from other cooking channels?
Adam Byatt emphasizes simplicity, precision, and the science behind each step, avoiding unnecessary gadgets. He often breaks down traditional recipes into clear, repeatable processes, unlike many channels that rely on elaborate presentations.
Last updated: August 30, 2026
