1 Tablespoon Butter
1 Tablespoon Olive Oil
2 x Medium Red Onions (thinly sliced preferably with a mandolin)
1 x Tablespoon Soft Brown Sugar
1 Tablespoon Balsamic Vinegar
1 Tablespoon Soy Sauce
Heat 1tbsp of the oil and 1tbsp of the butter in a heavy bottomed frying pan (we use the 20cm Le Creuset),
Add the onions. Cover with a lid and cook gently for about 15 minutes, stirring occasionally.
Uncover the pan, increase the heat slightly and sprinkle in the sugar. Cook, stirring frequently, until the onions begin to caramelize and brown.
Add the balsamic vinegar and soy sauce and cook briskly until the liquid evaporates.
Season and leave your caramelised onions to cool slowly.