What better to warm you up on a cold winters night than a hearty casserole!
Finely slice the onion and garlic.
Melt the butter in a saucepan over a low heat, add in the olive oil, worcestershire sauce, sugar, salt and pepper.
Add in the sliced onions and garlic and cook for around 10 minutes until soft.
Stir in the flour and cook for another couple of minutes.
Turn down the heat to the lowest setting and pour in the stock and thyme. Put the lid on and allow to cook for 30 minutes.
Remove the lid and keep stirring until it has reduced to your desired consistency.
Add a splash of red wine if you wish and season to your taste. Enjoy!
Recipe from Slow the Cook Down