While steaming then roasting potatoes may seem rather a fandango, one bite of these will convince you that it's utterly worth it; besides, it's not as if you have to do anything while they either steam or roast. Go slowly when adding the salt and vinegar, tasting as you go, as I like these to have the wincing hit of salt and vinegar crisps, and you may prefer a lighter hand with the sprinkling. For US cup measures, use the toggle at the top of the ingredients list.