Heston's Roast Potatoes
This recipe makes roast potatoes with a crisp, glass-like crust and a fluffy interior. The key is to cut the potatoes so they have lots of sharp edges and cook them until almost falling apart. Don't scrimp on the oil; it's the fat in the cracks that makes them crispy. Olive oil works well, or use goose fat or beef dripping for different flavors. Garlic and rosemary are optional; add them to the boiling water or the roasting tray 5 minutes before the end.
This recipe makes roast potatoes with a crisp, glass-like crust and a fluffy interior. The key is to cut the potatoes so they have lots of sharp edges and cook them until almost falling apart. Don't scrimp on the oil; it's the fat in the cracks that makes them crispy. Olive oil works well, or use goose fat or beef dripping for different flavors. Garlic and rosemary are optional; add them to the boiling water or the roasting tray 5 minutes before the end.
- Carbohydrate 38.929335 g
- Cholesterol 0 mg
- Fat 1.25354333333333 g
- Fiber 5.38725011412303 g
- Protein 4.66185833333333 g
- Saturated Fat 0.303795 g
- Serving Size 1 1 Serving (219g)
- Sodium 14.5873333333333 mg
- Sugar 33.542084885877 g
- Trans Fat 0.114761666666666 g
- Calories 180 calories
Step-by-step
- Preheat the oven to 180ºC/fan 160ºC/gas mark 4.
- Wash and peel the potatoes and cut into quarters. Put them into a bowl under running water for 5 minutes to wash the starch off.
- Cover the potatoes with water in a large saucepan then add the garlic and rosemary if using and bring to the boil. Cook until the potatoes are very soft and almost breaking apart (approximately 25–30 minutes). Drain carefully and leave to cool in the colander.
- Pour 5mm of olive oil into a roasting tray large enough to hold the potatoes in one layer. Place the tray in the oven to pre-heat the oil for 15 minutes.
- Add the potatoes to the pan and coat them in the hot oil. Place the tray back in the oven for at least 1 hour and 15 minutes, turning the potatoes gently every 20 minutes, until the potatoes are golden brown and crispy all over.
- Drain on kitchen paper and season with salt.
Achieving a glass-like exterior and a fully hydrated interior requires boiling the potato pieces until they are structurally compromised before they ever touch hot oil. Understanding how thermal energy and starch gelatinization interact dictates every stage of this method, allowing home cooks to replicate professional results reliably.
- Scaling the batch up requires increasing the surface area of the roasting vessel rather than overcrowding a single pan, because overlapping pieces trap steam that softens the crust. Use multiple trays at 180 degrees Celsius, rotating their rack positions every twenty minutes to compensate for uneven oven heating spots.
- Washing raw potato pieces under running water for five minutes removes surface starch granules that would otherwise create a gummy barrier rather than a crisp shell.
- Simmering the tubers for twenty-five to thirty minutes breaks down the pectin holding the cellular matrix together, yielding soft edges that catch and hold roasting fat.
- Preheating five millimeters of oil in the pan for fifteen minutes ensures immediate searing upon contact, preventing the potatoes from absorbing excess grease before the moisture cooks off.
- Substituting the olive oil with an equal volume of rendered animal fat such as beef dripping lowers the smoke point slightly while increasing savory depth through Maillard reactions.
Precision during the boiling stage determines whether the final product shatters under a fork or merely collapses into mush. Managing thermal contact times in the oven transforms standard tubers into shatter-crisp sides.
