If you’ve never experienced the magic of whole roasted onions, you’re in for a flavorful surprise. These Garlic Butter Roasted Onions transform humble bulbs into melt-in-your-mouth delights, infused with rich butter, golden garlic, and fresh herbs. The result? A side dish so elegant and savory, it steals the spotlight at any table—from cozy family dinners to festive holiday feasts. One bite, and you’ll see why roasted onions deserve a place in your recipe rotation.
🕒 Prep Time: 10 min | 🍽 Cook Time: 45–60 min | 👥 Servings: 3–4
Ingredients:
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3 large yellow or white onions (peeled, roots trimmed slightly to sit flat)
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4 tbsp unsalted butter (softened)
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4 garlic cloves (finely minced)
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2 tbsp olive oil
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1 tbsp balsamic vinegar or Worcestershire sauce (optional for depth)
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1 tsp sea salt
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½ tsp black pepper
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Fresh thyme or parsley (chopped, for garnish)
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Grated parmesan (optional topping)
Instructions:
1. Preheat Oven
Preheat your oven to 200°C (390°F).
2. Prepare the Onions
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Slice a small cap off the top of each onion.
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Use a knife to make a shallow “X” in the top to allow the flavors to seep in.
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Place the onions in a small baking dish or cast-iron skillet.
3. Make the Garlic Butter
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Mix softened butter with garlic, olive oil, salt, pepper, and a dash of balsamic or Worcestershire if using.
4. Roast
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Spoon garlic butter over each onion, pressing into the cuts.
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Pour a little water (2–3 tbsp) into the bottom of the dish to keep moisture in while roasting.
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Cover loosely with foil and roast for 30 minutes.
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Uncover and continue roasting another 15–25 minutes, basting occasionally, until tender and golden-brown.
5. Finish and Serve
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Sprinkle with chopped herbs and parmesan if desired.
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Serve hot as a side dish, or over steak, mash, or crusty bread.
Tips:
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Use sweet onions (like Vidalia) for even richer flavor.
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Add a splash of white wine or vegetable broth for extra depth.
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Can be made ahead and reheated — perfect for holiday meals or elegant dinners.
Conclusion
These Garlic Butter Roasted Onions are proof that simple ingredients can create truly unforgettable flavors. Caramelized on the outside, buttery and tender within, they make the perfect companion to any main dish—or shine all on their own. Whether you’re dressing up a holiday table or adding flair to a weeknight dinner, this elegant side is sure to impress. Try them once, and they’ll become a favorite in your kitchen!
