Roasted Balsamic Glazed Onions

Pear Infused Balsamic Glazed Onions

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I’ve posted photos of these pear infused balsamic glazed onions on Instagram a few times and people seem to love them! If you’ve read other recipes and posts of mine, you’ll know that Alessi Pear Infused White Balsamic Vinegar is my all-time favorite! It’s an ingredient I picked up from cooking in my MIL’s kitchen when they had the lake house up in Michigan. I miss that house so much. She always had a bottle or two in the pantry. It’s like regular balsamic but sweeter and a bit milder, with a kiss of pear flavor. If Alessi ever stops making this, I’ll have to infuse my own white balsamic!

Update: I can’t find Pear Infused White Balsamic Vinegar so now Alessi Raspberry Blush White Balsamic Vinegar is my new favorite to use in “Pear Infused Balsamic Glazed Onions!” I guess I should rename them “Balsamic Glazed Onions? “

I really love these onions, but roasting onions seems to take a while to get them nice and tender. So I recently started pre-cooking them for just a couple of minutes in the microwave to speed up the process. The onions get tender much more quickly. The glaze gets plenty thick, but I’d imagine you could use a spatula and remove the onions and set them aside, and let the glaze reduce further on high heat for a few minutes. Just be careful! Burnt sugar and vinegar are terribly bitter!

When you make these Pear Infused Balsamic Glazed Onions, resist the urge to add more vinegar or omit the water. If you use too much vinegar, they get really sour. I find the splash of water, and a combination of balsamic and white vinegar together is perfect!

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As for the onion, I just tried this recipe with a slice of red onion. OMG, I highly recommend it! Serve up Pear Infused Balsamic Glazed Onions with a slice of each, red onion and a sweet white onion or Vidalia. The red doesn’t get quite as sweet, but served next to the Vidalia onion, wow…


Pear or Raspberry Infused White Balsamic Glazed Roasted Onions

These tangy caramelized sweet buttery onions can be roasted on the grill or in the oven, or you can use my cheater method and get them on the table in about a half-hour! You can use regular balsamic or your favorite vinegar, but this Alessi Pear Infused White Balsamic Vinegar is amazing! You can reduce the butter or replace it with olive oil, but the butter makes them shiny and luscious! (If you can't find Pear Infused Alessi, try Alessi White Balsamic Raspberry Blush!)
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5 from 1 vote
Prep Time 5 minutes
Cook Time 35 minutes
Course Appetizer, Side Dish
Cuisine American, Italian
Servings 8
Calories 110 kcal


  • roasting pan If you want these on the table in a half-hour use a microwave-safe pan and a *disposable roasting pan, or even make a tray out of nonstick foil
  • small bowl For marinade
  • oven, broiler or grill.
  • microwave Optional


  • 2 Vidalia onions Yellow or red onions will work.
  • 4 tbsp butter Olive oil can be used, however, butter is best!
  • 4 tbsp Alessi Pear infused white balsamic vinegar Pear infused is great, but regular balsamic, red, or cider vinegar is fine. White balsamic looks best, in my opinion. If you can't find pear-infused, try Raspberry Blush White Balsamic.
  • 2 tbsp White vinegar Any white vinegar, or rice wine vinegar.
  • 2 tbsp water
  • 3 tbsp brown sugar
  • tsp pepper Black or white pepper, to taste.
  • tsp salt
  • ½ tsp herbs Optional – rosemary and/or thyme are perfect!
  • ½ tbsp olive oil Optional – drizzle additional over onions when serving.


  • Use one tbsp. of butter, grease the roasting pan, sides and bottom. Or line with non-stick foil.
    Preheat your oven to 450°F
  • Combine water, both vinegars, seasoning, olive oil, and sugar in a small bowl. Stir to combine.
  • Slice onions in even slices, about 1/2 inch thick. (Thinner will cook faster, but fall apart more.)
  • Add onions in a single layer to the pan and spoon marinade over them or flip the onions to coat.
    *If microwaving to speed up cooking, butter the bottom of the microwavable dish, (they can overlap a bit) and pour some marinade over. The photos shown are for half a batch. Microwave the onions for two minutes and spoon the marinade from the bottom of the pan over the tops of the onion slices. Microwave for another minute or two or until they start to soften.
  • If you are using fresh herbs, reserve some for garnish and sprinkle some on the onions.
  • These can marinate overnight or be cooked right away.
    Onions Marinating
  • When ready to roast, place them in a single layer in the roasting pan. Slice the remaining butter so that each onion slice has a dab of butter on top.
    (You can omit the butter and drizzle more olive oil, but butter is worth it!)
    Onions ready to roast
  • Roast the onions in a 450°F oven until they are soft and the marinade has thickened to a shiny glaze. Baste after ten minutes.
    From raw, they will probably take about 30-45 minutes. Keep an eye on them because if the glaze burns it will get bitter. Be careful, the sauce will be hot like lava! Once the onions are tender and the sauce is thick and sticky, they are done.
    Be sure to check them and spoon over the marinade periodically.
    If using pre-cooked, microwaved onions, they will take about 25 minutes. The sauce/glaze will thicken some as it cools a bit. Be careful, it's as hot as lava!
    Roasted Balsamic Onions


*I usually cook these with the odds and ends of onions in the fridge. So the photos are shown with about five or six slices.
*Resist the urge to add more vinegar and/or less water. If you only use vinegar or omit the water, they will come out vinegary and sour.
*I use disposable roasting pans for these. When the marinade thickens it gets sticky and delicious. It can be hard to remove from Pyrex or glass roasting pans. If it does get baked on, try Bar Keepers Friend and Magic Erasers.
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Calories: 110kcalCarbohydrates: 12gProtein: 1gFat: 7gSaturated Fat: 4gCholesterol: 15mgSodium: 97mgPotassium: 113mgFiber: 1gSugar: 10gVitamin A: 184IUVitamin C: 4mgCalcium: 24mgIron: 1mg
Keyword balsamic, balsamic vinegar, candied onions, glazed onions, infused vinegar, onion side dish, onions, pear, side dish, sweet and savory onions, sweet onions, unique veggie dish, vinegar, white pear balsamic vinegar
Tried this recipe?Let us know how it was!

I haven’t tried this recipe with all white vinegar and white sugar, but I bet it would be really good too. Maybe with a drizzle of honey? Maybe a pinch of Parmesan to finish?

If you try the recipe please rate it to support my blog! Or comment and let me know how you liked it! If you love this tangy, sweet dish, you may also like my Lemon Shrimp with Mustard Horseradish Sauce!

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About the author

I started eBookFoodie in 2018 as a hobby, to quiet a nagging voice inside my head to be creative and to be more productive. It went live in January 2019. I’ve always been hesitant to post about myself or my life, but when it comes to recipes and books, I find that I enjoy it! I especially like posting recipes inspired by books that I’ve read, and recreating family favorites!