1. Finely slice the onions. Much easier with a mandolin or food processor. 2. Heat the oil in a large deep frying pan. 3. Add the onions and garlic. Cook, covered, over a low heat for about 30 minutes, until soft. Stir occassionally. 4. Stir in the mustard seedsand cook a further minute. 5. Add the brown sugar, balsamic vinegar and the salt. 6. Bring to the boil, reduce heat, simmer uncoverd for about 5 minutes. Stir occassionally. Simmer until most of the liquid has evaporated and the onions are caramelised. 7. Spoon the mixture into hot sterilised jars and seal while hot. Keep refrigerated. ---------------------------------------------------------------------------
Nutrition
Ingredients
