Preheat the oven to 450 degrees. Line a baking sheet with aluminum foil.
Remove the ends of the Brussels sprouts and any bruised outer leaves. Halve the sprouts and place in a large bowl. Add olive oil, vinegar, salt and pepper and toss to coat. Pour the Brussels sprouts onto the baking sheet in a single layer. Be careful not to crowd them.
Cook for 10-12 minutes, stirring once, about halfway through. They should be browned at the edges and crisp tender when done.
Recipe by Maine Course at https://mainecourse.bdnblogs.com/2016/11/01/recipes/brussels-sprouts-grow-on-stalks-and-are-delightful-roasted/