Easy Roasted Cipollini Onions
2-3 tablespoons unsalted butter
1 pounds cipollini onions, peeled and trimmed
Kosher salt and freshly ground black pepper
1 Adjust oven rack to center position and preheat oven to 325°F. Melt butter in a large non-stick or cast iron skillet over medium heat. Add onions and toss to coat. Season to taste with salt and pepper.
2 Transfer to oven and roast, tossing occasionally, until deeply caramelized and tender, about 30 minutes. Serve immediately.