Step 1

Arrange a rack in the middle of the oven and heat the oven to 450°F.

Step 2

Trim and quarter 1 1/2 pounds cremini mushrooms and place on a rimmed baking sheet. Smash and peel 4 garlic cloves and add them to the baking sheet. Drizzle with 3 tablespoons olive oil and season with 1 1/4 teaspoon kosher salt and 1/4 teaspoon black pepper. Toss to coat and spread out in a single layer.

Step 3

Roast, tossing halfway through, until the mushrooms are tender and caramelized, 18 to 20 minutes total. Remove from the oven, drizzle with 1 tablespoon balsamic vinegar, and toss to coat. Garnish with chopped fresh chives or parsley, if desired.