Potato Gratin With Chicken Broth, Garlic and Thyme

Instructions

• Adjust oven rack to lowest position. Heat oven to 350 degrees.
• With motor running, drop garlic through the feeder tube of a food processor to mince. Scrape down sides of bowl. With motor running, add oil through feeder tube; continue to process. Transfer to a small bowl, stir in thyme and set aside. Switch to the slicing blade and slice the potatoes (or thinly slice them with a knife).
• Brush a little of the garlic oil over the bottom of a 9-by-13-inch (or similar size) baking dish. Make 4 layers in this order: potatoes, a generous brushing of the oil, a sprinkling of salt and pepper. Slowly add broth at one corner to avoid washing off garlic and herbs.
• Bake until most of the broth has been absorbed, about 45 minutes. To brown, move pan to middle rack and broil until spotty brown, about 5 minutes.
• Let rest so potatoes continue to absorb liquid, about 10 minutes. May be made ahead, held at room temperature while roast cooks, then reheated.