Scrub the potatoes clean, or peel them if you prefer. Chop into 2.5cm dice, then rinse and soak in cold water while you make the other elements of this recipe
To make the bravas sauce, place half the light olive oil in a deep frying pan over a medium heat, add the garlic and fry until golden. Stir in the chillies, add the herbs and sizzle for 1 minute. Now add the smoked paprika, onions and peppers, and cook for 30 minutes, stirring regularly so they do not catch or burn.
Pour in the wine and reduce by half. Add the tomatoes and simmer for at least 45 minutes, or until the volume has halved. Set aside to cool, then transfer to a blender and blitz for 2 minutes, until creamy and smooth. Taste and adjust the seasoning.
The sherry alioli can be made in a food processor if you wish, but we prefer the hand method. Place the egg yolks, garlic, vinegar and sherry in a bowl, add a large pinch of salt and whisk vigorously for a few minutes, until emulsified. Now start adding the oils a drop at a time, whisking continuously so that the mixture does not split. Gradually increase the oil to a slow drizzle, and eventually to a steady flow, whisking until you feel your arm might drop off. Carry on until you have a smooth mayonnaise. Taste and adjust the seasoning, adding a little more vinegar if you wish. Store in the fridge until needed.
To make the rosemary salt, place a little light olive oil in a frying pan over a medium heat, add the rosemary and fry for 2 minutes, or until crisp. Drain on kitchen paper, then place in a blender with the salt and smoked paprika and blitz to a fine powder. Stored in an airtight plastic container, this will keep for up to 3 months.
Drain the potatoes, transfer to a saucepan of cold salted water and bring to the boil. Lower the heat to a simmer and cook until tender (a fork should go in with just a little resistance). Drain and leave to cool and dry in a colander.
Chuff or shake the potatoes to fluff the edges. We always tell our chefs that the outside of them should resemble the outline of a craggy coast – more opportunity for that gorgeous oil to get into the nooks and crannies and crisp up the flesh. If you can plan ahead, it’s great to chill them at this point, overnight if possible.
There are two methods of cooking the potatoes, so take your pick…
Method 1: Fill a deep-fat fryer with light olive oil and heat it to 160ºC. Alternatively, fill a large saucepan one-third full with the oil and heat until a cube of bread browns in 1 minute. Fry the potatoes in this once, for about 5 minutes, until lightly coloured on the outside. Transfer to a plate lined with kitchen paper, leave to cool, then refrigerate overnight or at least until cold.
When you want to serve, heat the oil to 190ºC, or until a cube of bread browns in 20–30 seconds, then fry the potatoes again until crisp and golden outside but soft and fluffy in the middle. Drain, then season with the rosemary salt.
Method 2: Preheat the oven to 220ºC/200ºC Fan/Gas mark 7. Add 75ml olive oil to a roasting tray and place in the oven until smoking hot (about 10 minutes). Add your chilled, chuffed potatoes, the lemon zest, rosemary, thyme and garlic and toss well. Roast for about 45 minutes, turning once or twice. Season with the rosemary salt.
NOTES
- The more effort you put into the potatoes, the more you get out. Chilling them right down after boiling and chuffing makes a big difference, as does the variety. Maris Piper, King Edwards and Desirée are the best.
- For the bravas sauce you can increase or reduce the spice level as you want, even omitting the chillies entirely if you like. The sauce can also be used with many other dishes, such as pasta, bakes, chicken and fish.