Marinated Roasted Onions
A simple, soulful side dish that transforms humble onions into a silky, tangy, melt-in-your-mouth experience.
Ingredients
Main Ingredients
- 6 medium medium onions (yellow or sweet) Halved or quartered depending on size.
- 3 tablespoons extra-virgin olive oil Coats and helps caramelize.
- 3 tablespoons red wine vinegar or apple cider vinegar Brightens the roast with gentle acidity.
- 1 tablespoon honey or maple syrup Balances the tang with a hint of sweetness.
- 1 teaspoon Dijon mustard Adds depth and a gentle tang.
- 2 cloves garlic, minced Aromatic lift.
- 1 teaspoon fresh thyme leaves or 1/2 teaspoon dried thyme Earthy warmth.
- to taste Salt and freshly ground black pepper For seasoning.
- for garnish Fresh parsley or chives Adds color and freshness.
- 1 teaspoon smoked paprika (optional) For a smoky note.
- a pinch chili flakes (optional) For heat.
Instructions
Preparation
- Preheat your oven to 400°F (200°C). Line a baking sheet with parchment for easy cleanup.
- Trim the root and stem ends of the onions, then halve (or quarter) them through the root so they hold together. Arrange cut side down on the baking sheet.
- In a small bowl, whisk together the olive oil, vinegar, honey, Dijon, minced garlic, thyme, salt, and pepper until glossy and fragrant.
- Brush or pour the marinade over the onions, ensuring each piece gets a touch of that tangy gloss.
Cooking
- Roast for 35–45 minutes, turning once halfway through, until the onions are deeply golden at the edges and soft through the center.
- Remove from the oven and let cool slightly. Transfer to a shallow bowl and spoon any pan juices over the onions.
- Toss with fresh parsley or chives and serve warm or at room temperature.
Notes
Store in an airtight container for up to 4 days. The flavors deepen overnight, making leftovers often better the next day. For a festive twist, add pomegranate molasses and toasted pistachios.