- 50g/1¾oz unsalted butter
- 1 large onion, finely sliced
- 100ml/3½fl oz red wine
- 300ml/10fl oz hot beef stock (vegetarians can substitute with vegetable stock)
- salt and freshly ground black pepper
- 2 slices bread
- 1 tsp olive oil
- 25g/1oz cheddar cheese, grated
- 1 tsp Dijon mustard
- salt and freshly ground black pepper
- For the soup, melt the butter in a medium saucepan over a low heat.
- Add the sliced onion, cover and gently cook until softened.
- Increase the heat, add the wine and stock and simmer until reduced by a third.
- To make the croutons, preheat the grill to the highest setting.
- Drizzle the bread with the olive oil and season, to taste, with salt and freshly ground black pepper.
- In a small bowl, mix together the grated cheddar, Dijon and season, to taste, with salt and freshly ground black pepper.
- Heat a griddle pan until smoking. Add the bread and griddle for one minute on each side, or until lightly toasted.
- Place the toast on a small baking tray, spread over the cheese mix and transfer to the grill to cook for two minutes, or until the cheese mix has melted.
- Remove from the grill and cut the cheese on toast into chunky croutons.
- To serve, pour the soup into a warm bowl and top with a few cheesy croutons.