Roast Bone-In Pork Loin With Potatoes

Preheat oven to 375°. Stir 6 garlic cloves, finely chopped, ¼ cup extra-virgin olive oil, 1 Tbsp. finely chopped sage, 1 Tbsp. unsalted butter, melted, and 2 tsp. finely chopped rosemary in a small bowl to combine.

Place one 4-lb. center-cut bone-in pork loin roast in a large roasting pan. Season generously with kosher salt and freshly ground pepper. Rub garlic mixture all over pork. Cover pork loosely with foil and roast, rotating pan halfway through, 2 hours.

Meanwhile, divide remaining ¼ cup extra-virgin olive oil between 2 large heavy skillets and heat over medium-high. Divide 4 large russet potatoes (about 3 lb.), peeled, cut into 1" pieces, between skillets, season with salt and pepper, and cook, tossing occasionally, until golden but still firm, 10–15 minutes.