Red Onion Marmalade

Red Onion Marmalade

A sweet-savory condiment that turns everyday meals into something special

Red onion marmalade is one of those recipes that feels fancy but is surprisingly easy to make. It’s rich, slightly sweet, tangy, and deeply savoury — perfect with cheese boards, burgers, roasted veggies, or even spread on a sandwich.

Once you make it, you’ll wonder how you ever lived without a jar in the fridge.

Ingredients

• 3 large red onions, thinly sliced

• 2 tbsp olive oil or butter

• ¼ cup brown sugar (or coconut sugar)

• ⅓ cup balsamic vinegar

• ¼ cup red wine (or apple cider vinegar for non-alcoholic)

• 1 tsp salt

• ½ tsp black pepper

• Optional: 1 tsp fresh thyme or rosemary, finely chopped

Instructions

1. Slowly soften the onions

   Heat oil or butter in a large pan over medium-low heat. Add the sliced onions and salt. Cook gently for 20–25 minutes, stirring occasionally, until the onions are soft and deeply caramelized.

2. Add sweetness and depth

   Stir in the brown sugar and let it melt into the onions for 2–3 minutes.

3. Deglaze and simmer

   Pour in the balsamic vinegar and red wine. Add pepper and herbs if using. Reduce heat to low and simmer for 15–20 minutes, stirring occasionally, until thick, glossy, and jam-like.

4. Cool and store

   Let cool slightly, then spoon into a clean jar. The flavour deepens even more as it rests.

Storage

• Keeps 2–3 weeks in the fridge in a sealed jar

• Can be frozen in small portions for longer storage

How to Use Red Onion Marmalade

• Spread on crackers with goat cheese or brie

• Add to burgers, sausages, or grilled sandwiches

• Spoon over roasted vegetables

• Serve with pork, chicken, or steak

• Elevate a simple cheese board instantly

• This is a slow food recipe — low heat and patience are what bring out the magic. Don’t rush it.