Bring a pot of water to a boil and add around a tsp of baking soda and a hefty pinch of salt.
Drop in your peeled potatoes and boil until the potatoes are tender and then drain.
Put the potatoes in a bowl and toss until the outside breaks apart and makes a slurry.
Season with salt and drizzle over a bit of oil.
Lay flat on a lined sheet tray and roast in the oven at 400°f for around 40 minutes turning them halfway through.
Toss with your sauce, season to taste with salt, and serve.
For the sauce: Mix together the parsley, cilantro, grated garlic, pickled chilis or fresh chilis, sherry vinegar, and enough olive oil to slightly cover the herbs.
