NOTE: This technique uses an oven. All ovens are different, but some ovens, like my ovens, are more different than others. If you do this, keep an eye on both time and temperature.
Why roast potatoes? Because they're a quick flavorful side dish, and because they're especially handy to have around if, say, you have a batch of garlic aioli you want to use before it goes bad.
STEP ONE: Buy Potatoes
Many people overlook this step, and end up very hungry as a result. I like Yukon Golds or fingerlings for roasting.