lunch · vegetarian · gluten-free
Slow caramelized onions
Deeply browned, jammy onions cooked low and slow, for burgers, soups, dips and tarts.
- Time
- 60min
- Steps
- 5
Ingredients
Tick what you already have.
Allergens
Contains milk.
Worked out from the ingredient names, so it can miss what a brand adds or what a factory handles. Swaps change it too. Always read the labels, and if an allergy is serious, check every product. Allergies, food safety and our disclaimer.
Shopping list
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Equipment
Nothing beyond a knife, a board and the usual pots and pans.
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Method
-
1
Melt butter with oil in a wide heavy skillet.
-
2
Add onions and salt and cook over medium, stirring, until wilted, 10 minutes.
-
3
Lower heat and cook, stirring every few minutes, until deep amber, 40–50 minutes.
-
4
Whenever a brown film forms, deglaze with a splash of water and scrape it up.
-
5
Finish with vinegar; refrigerate up to a week or freeze.
