Save to Pinterest A sweet, tender Vidalia onion roasted whole until meltingly soft, with aromatic herbs and butter: a simple yet elegant side dish.
I first made Onion Boil when searching for easy crowd-pleasers for my family holiday table: its humble ingredients always earn rave reviews!
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Ingredients
- Vidalia onions: 4 large, unpeeled (or substitute sweet onions)
- Unsalted butter: 4 tbsp
- Fresh thyme: 4 sprigs
- Garlic: 4 cloves, peeled
- Kosher salt: 1 tsp
- Freshly ground black pepper: ½ tsp
- Chopped fresh parsley: 2 tbsp, optional garnish
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Instructions
- Prep & Preheat:
- Preheat oven to 400°F (200°C).
- Trim Onions:
- Trim root ends and tops so onions sit flat, leave skins on.
- Score Tops:
- Use paring knife to cut shallow X into onion tops.
- Season:
- Place onions on heavy-duty foil squares, sprinkle with salt and pepper.
- Add Aromatics:
- Press 1 tbsp butter, 1 sprig thyme, and 1 garlic clove into each onion top.
- Wrap & Roast:
- Wrap each onion tightly in foil, set on baking sheet, roast for 1 hour 10 minutes until very tender.
- Finish & Serve:
- Unwrap, remove skins, place on plates. Spoon over melted butter from foil. Sprinkle with parsley.
Save to Pinterest My kids always love unwrapping their own onion parcels at the table: a little surprise moment that makes this dish special for gatherings.
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Required Tools
Baking sheet, heavy-duty aluminum foil, paring knife, oven
Allergen Information
Contains dairy (butter): substitute with vegan butter or olive oil for dairy-free; always check ingredient labels.
Nutritional Information
Per serving: 130 Calories, 7 g Total Fat, 19 g Carbohydrates, 2 g Protein
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Enjoy these sweet onions hot from the oven: their simple flavor makes any meal feel special.
Answers to Recipe Questions
- → What type of onions work best for roasting?
Sweet varieties like Vidalia, Walla Walla, or Maui onions are ideal due to their natural sugars and tender texture after roasting.
- → How do I know when the onions are fully cooked?
They should be very tender and easily pierced with a knife, indicating a soft, melting texture.
- → Can I add extra flavors to the onions before roasting?
Yes, ingredients like balsamic vinegar or smoked paprika can be added for additional depth and complexity.
- → Is it necessary to keep the onion skins on during roasting?
Keeping skins on helps protect the onions, allowing them to steam gently and retain moisture, resulting in a tender interior.
- → What are good serving suggestions for roasted Vidalia onions?
They pair beautifully with grilled vegetables, roast meats, or as a hearty vegetarian component alongside crusty bread.
