- 4 1/2 lb medium (3-inch) yellow-fleshed potatoes such as Yukon Gold
- 1/3 cup extra-virgin olive oil
- 6 garlic cloves, halved
- 1/4 teaspoon table salt
- 1 tablespoon finely grated fresh lemon zest
- 2 teaspoons flaky sea salt, such as Maldon, or kosher salt
- Put oven rack in lower third of oven and preheat oven to 425°F.
- Peel potatoes and quarter. Parboil potatoes in a 5- to 6-quart pot of boiling salted water 5 minutes, then drain in a colander and let stand in colander 5 minutes.
- Transfer potatoes to a 17- by 12-inch shallow baking pan and toss with oil, garlic, and table salt. Roast, stirring and turning once halfway through cooking, until golden brown, 20 to 25 minutes.
- Transfer potatoes and garlic to a large bowl, then sprinkle with zest and sea salt and toss well.