5 from 3 votes
How to make the perfect, tasty, sticky caramelised onions - so simple and delicious!
How to make perfect caramelized onions
Prep Time
30 mins
Cook Time
1 hr 30 mins
Total Time
2 hrs

The perfect sticky caramelized onions are very easy to make but cannot be rushed. Ideal for making ahead and adding to burgers, soups, stews or serving with a cheeseboard. Make ahead and store in the fridge or freezer.

Course: Side
Cuisine: French
Keyword: caramelized onions
Servings: 10 heaped spoonfuls (1 cereal bowl)
Calories: 92 kcal
Author: Helen Best-Shaw
  • 1 tbs good quality olive oil
  • 25 g butter
  • 1 1/2 kg onions - peeled and thinly sliced - I used a mix of white and red
  • 4 fat cloves garlic - peeled
  • Salt & Pepper
  1. Place the oil and butter in a large non stick pan or wok, place over a low heat and allow to melt.
  2. Add the onions and garlic and stir well.
  3. Allow to cook until reduced, brown and caramelized, stirring every 5 minutes to prevent the onions sticking and burning. This may take up to an hour and a half.
  4. Season well to taste.
Recipe Notes

Caramelized onions will keep in the fridge for up to a week in an airtight pot. 

Freezes well.

To make this recipe vegan, omit the butter and use double the quantity of oil.

Nutrition Facts
How to make perfect caramelized onions
Amount Per Serving
Calories 92 Calories from Fat 27
% Daily Value*
Fat 3g5%
Saturated Fat 1g6%
Cholesterol 5mg2%
Sodium 24mg1%
Potassium 223mg6%
Carbohydrates 14g5%
Fiber 2g8%
Sugar 6g7%
Protein 1g2%
Vitamin A 65IU1%
Vitamin C 11.5mg14%
Calcium 37mg4%
Iron 0.3mg2%
* Percent Daily Values are based on a 2000 calorie diet.