Place the onion halves into a glass bowl and cover with the cider vinegar. Soak for one hour.
Preheat oven to 200C, 180C fan, gas mark 6.
Drain the onions, retaining 100ml of the vinegar in a pan with the rest of the ingredients. Bring to a boil over a high heat, and simmer for approx 10 minutes, until just starting to thicken.
Place the onions in a lightly greased oven dish, and then pour over the glaze. Cover with foil, and cook in the oven for 30 minutes. Remove the foil and continue to cook for a further 15 minutes, or until nicely coloured.
Nutrition
Nutrition Facts
Balsamic Glazed Red Onions
Amount per Serving
Calories
151
% Daily Value*
Fat
7
g
11
%
Saturated Fat
1
g
6
%
Sodium
11
mg
0
%
Potassium
225
mg
6
%
Carbohydrates
18
g
6
%
Fiber
2
g
8
%
Sugar
12
g
13
%
Protein
1
g
2
%
* Percent Daily Values are based on a 2000 calorie diet.