Tree Nut Free Classic Roasted Onions

Total time1 hr 15 min

Prep time10 min

Cook time1 hr

4.5

(12)

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Ingredients

4 servings

4 medium yellow onions (about 8 oz each), unpeeled
2 tbsp olive oil
½ tsp kosher salt
¼ tsp black pepper
2 tbsp unsalted butter
1 tbsp balsamic vinegar
1 tsp fresh thyme leaves

For serving

flaky sea salt, for serving (optional)

Instructions

1
Preheat the oven to 400°F (205°C). Trim a thin slice off the root end of each onion so they sit flat, leaving the papery skin intact. Place the onions root-side down in a snug baking dish.
2
Drizzle the olive oil over the onions and use a pastry brush or your hands to coat the skins evenly. Season with the kosher salt and black pepper.

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