Caitlin Bensel
Serves 4 (serving size: about 1/2 cup)

Keep this recipe around for adding big flavor to burgers, steaks, and winter salads. For the best balance of tenderness and crunchiness, shop for onions that are the same size so they cook evenly.

How to Make It

Toss together red onions (about 2 1/2 lb.), extra-virgin olive oil, balsamic vinegar, kosher salt, and black pepper in a cast-iron skillet; add thyme sprigs. Cover tightly with foil. Bake at 450°F 15 minutes. Uncover and stir. Bake, uncovered, until caramelized, 15 to 20 minutes.

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