The Best Balsamico Caramelised Red Onions

The secret of this recipe is patience, without patience you’ll never get the right result, cook the onions low and slow and you’ll be rewarded with the best caramelised balsamico red onions you have ever had. They will be great as a topping on sausages and mash or on a hamburger.

The Best Balsamico Caramelised Red Onions

Avatar photoSpooning & Forking Couple
Soft and sweet, delicious on a burger or some sausage and mash.
5 from 2 votes
Prep Time 5 minutes
Cook Time 35 minutes
Course Side Dish
Cuisine European
Servings 2 Servings
Calories 74 kcal




  • Peel the red onion and get the first layer of skin off.
  • Slice the onion
  • Pre-heat the pan and melt the butter, but don't make it too hot.
  • Put the onions in the pan and give them a good stir, make sure all rings are covered with the melted butter.
  • Turn up the heat a bit and keep stirring until the onion is nice and soft.
  • Now here is where the patience comes in, your onions are far from ready, turn the gas to the lowest you can get it on the smallest burner and put the lid on the sauce pan.
  • Keep it low and slow for about 25 minutes, give the onions a stir every 5 minutes.
  • After 25 minutes, put in the balsamic vinegar and stir the onions until they are all covered with the vinegar. put the lid back on and keep it cooking for about 5 to 10 minutes more.


Calories: 74kcalCarbohydrates: 6gProtein: 1gFat: 6gSaturated Fat: 4gPolyunsaturated Fat: 0.2gMonounsaturated Fat: 1gTrans Fat: 0.2gCholesterol: 15mgSodium: 48mgPotassium: 85mgFiber: 1gSugar: 3gVitamin A: 176IUCalcium: 15mgIron: 0.1mg
Keyword Caramelised, Onion, Sweet
Tried this recipe?Let us know how it was!

1 comment

Juno 29 September 2022 - 19:40

5 stars
I tried this and it’s absolutely delish!


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