Crispy roast potatoes

2 tbsp salt

1/2 teaspoon (4g) baking soda

4 pounds (about 2 kg) Yukon Gold/yellow potatoes, or russet supposedly but not as good IMO, peeled and cut into about 2" chunks

5 tablespoons (75ml) extra-virgin olive oil, duck fat, goose fat, or beef fat
Small handful picked fresh rosemary leaves, finely chopped (or whatever aromatic herbs you want to add)
3 medium cloves garlic, minced

Freshly ground black pepper
Small handful fresh parsley leaves, minced
 

Preheat oven to 450 (or 400 for convection).

Boil water with salt and baking soda. Add potatoes, boil about 10 minutes or until you can easily put a knife in one.

Meanwhile, heat oil with garlic and herbs in another pan.

Let potatoes sit for about a minute, then toss with garlic-herb oil and salt and pepper. They should get a little mashy on the outside, that's good.

Roast at 400-450 for 20 minutes, turn, maybe 20-40 minutes more. If you cut them smaller (as I usually do, by habit) they might even be done after the first 20 minutes.

Source: https://www.seriouseats.com/the-best-roast-potatoes-ever-recipe