Serving Size : 4 Preparation Time :0:15
Categories : "Sauces & Marinades" Cuisine: "British"
3 red onions -- sliced paper-thin
20 fluid ounces good beef stock
1 tablespoon plain flour
2 teaspoons dark brown sugar
salt and pepper
good quality olive oil
Head olive oil in large saucepan and cook the onions and sugar over a very low heat for and hour and a half
Add the flour and cook for a few minutes
Blend in the stock and bring to the boil
Serve hot
