Caramelised Red Onion Jam Recipe | Chelsea Sugar

Ingredients

• 3 tablespoons butter
• 2 tbsp olive oil
• 6 red onions, thinly sliced
• 2 garlic cloves, crushed
• ⅔ cup firmly packed Chelsea Brown Sugar
• ½ cup balsmic vinegar
• 1 teaspoon finely chopped fresh rosemary
• 1 tbsp dijon mustard
• 3 bay leaves
• 1 tbsp yellow mustard seeds
• 1 tbsp black mustard seeds
• 2 cinnamon sticks