Balsamic Roasted Onions

Description

Sweet onion wedges are roasted with Garlic and Rosemary Infused Olive Oils until tender and caramelized, then glazed and finished with 25 Star Dark Balsamic for a rich, savory-sweet side dish.

Recipe Overview

Servings: 4–6
Prep Time: 10 minutes
Cook Time: 35–40 minutes
Total Time: 45–50 minutes

Ingredients

6 small sweet onions or 4 medium sweet onions
⅓ cup 25 Star Dark Balsamic Vinegar, divided
2 tablespoons Garlic Infused Olive Oil
1 tablespoon Rosemary Infused Olive Oil
1 teaspoon kosher salt
½ teaspoon freshly ground black pepper
2 tablespoons chopped fresh parsley, thyme, or oregano
Flaky sea salt, for finishing, optional

Instructions

• Preheat the oven to 425°F. Line a large rimmed baking sheet with parchment paper.

• Peel the onions and cut them lengthwise through the root into thick wedges, leaving a small portion of the root attached to each wedge so the layers stay together during roasting.

• In a large bowl, gently toss the onion wedges with the Garlic Infused Olive Oil, Rosemary Infused Olive Oil, kosher salt, and black pepper until evenly coated.

• Arrange the onions in a single layer on the prepared baking sheet, leaving space between the wedges. Place as many wedges as practical with a cut side against the pan to encourage browning.

• Roast for 20 minutes without adding the balsamic yet.

• Remove the pan from the oven. Drizzle the onions with ¼ cup of the 25 Star Dark Balsamic and gently turn or toss the wedges to coat without breaking them apart.

• Return the onions to the oven and roast for another 15–20 minutes, gently turning once if needed, until deeply browned at the edges, tender all the way through, and coated in a glossy balsamic glaze. Begin checking at 15 minutes; larger wedges may need the full 20 minutes.

• Remove the onions from the oven. While they are still hot, drizzle with the remaining 1 tablespoon plus 1 teaspoon 25 Star Dark Balsamic and gently toss or spoon the pan glaze over them. Taste and adjust salt if needed.

• Transfer to a serving dish, scatter with the fresh herbs, and finish with a light sprinkle of flaky sea salt, if desired. Serve warm.

Chef’s Tip

Keep a little of the root attached to each onion wedge so the layers remain together as they soften. Give the wedges enough room on the pan to roast rather than steam, and delay the balsamic until the onions have already begun to soften and brown. Reserving a small portion of 25 Star Dark Balsamic for the hot onions after roasting preserves a brighter balsamic finish while the roasted portion creates the glossy caramelized glaze.

Flavor Variations

• Fig: Replace the 25 Star Dark Balsamic with Fig Dark Balsamic for a deeper fruit-forward glaze that pairs especially well with pork, roast chicken, blue cheese, and goat cheese.

• Pomegranate: Replace the 25 Star Dark Balsamic with Pomegranate Dark Balsamic for a brighter, tangier fruit profile that works especially well with lamb, poultry, and holiday meals.

• 25 Star White: Replace the 25 Star Dark Balsamic with 25 Star White Balsamic for a lighter-colored, brighter version that lets more of the onion's natural sweetness show through.

• Black Truffle: Prepare the onions with 25 Star Dark Balsamic as written, then finish each serving with a very light drizzle of Black Truffle Extra Virgin Olive Oil for earthy richness. Use sparingly.

• Goat Cheese: Finish the warm onions with crumbled goat cheese for a creamy, tangy contrast.

Pairings

Serve alongside grilled steak, roast chicken, pork tenderloin, lamb, burgers, or grilled sausage. For a complete plate, add mashed potatoes, creamy polenta, roasted root vegetables, green beans, or a simple salad. The onions are also excellent spooned over sandwiches, burgers, flatbreads, grain bowls, or toasted bread.

Build Your Plate

Turn these Balsamic Roasted Onions into a complete savory meal

The deeply roasted onions and rich balsamic glaze pair especially well with simply seasoned meats and hearty sides that let their sweet-savory character stand out.

Finished Side Dish

Balsamic Roasted Onions with Garlic and Rosemary Infused Olive Oils, fresh herbs, and a glossy 25 Star Dark Balsamic finish

Main Dish

Grilled steak, roast chicken, pork tenderloin, lamb, burgers, grilled sausage, or another simply seasoned savory protein

Sides & Additions

Mashed potatoes, creamy polenta, roasted root vegetables, green beans, crusty bread, or a simple green salad

Flavor Pairing

25 Star Dark Balsamic provides the signature glaze, Garlic Infused Olive Oil adds savory depth, Rosemary Infused Olive Oil brings an herbal note, and Fig or Pomegranate Dark Balsamic offer distinct fruit-forward variations

Recipe Notes

Sweet onions work especially well because roasting concentrates their natural sugars. Yellow onions may also be used for a slightly more savory onion flavor.

The exact roasting time depends on the size of the onions and thickness of the wedges. The onions are ready when a small knife slides easily through the thickest portion and the edges are deeply browned without the balsamic glaze tasting scorched.

These onions can be prepared up to two days ahead. Cool and refrigerate promptly in a covered container, then reheat gently before serving. If desired, add a small fresh drizzle of 25 Star Dark Balsamic after reheating to refresh the finish.