Cheddar, Stilton and Caramelised Onion Soup

This recipe is a British version of classic French onion soup. And it tastes wonderful!

Serves 4 / Prep time: 15 minutes / Cook time: 30 minutes


50g butter

3 medium brown or red onions, thinly sliced

1 tsp sugar

2 tbsp plain flour

1 litre reduced salt beef or vegetable stock

8 small slices rustic bread (such as a French stick)

Freshly ground black pepper

2 tbsp chopped fresh parsley

80g mature Cheddar cheese, grated

80g blue Stilton cheese, broken into chunks



1 Melt the butter in a large, heavy-based saucepan and add the onions, cooking them over a medium heat for about 10 minutes, stirring often. Add the sugar and cook for another few moments to really brown them.

2 Stir in the flour, then add a little stock, stirring until combined. Gradually stir in the remaining stock, then bring to the boil. Reduce the heat to low and cook gently for 15-20 minutes, stirring occasionally.

3 Preheat the grill. Toast the bread on one side only.

4 Season the soup with black pepper and stir in the parsley. Ladle the soup into 4 bowls that will withstand the heat from the grill. (And check that they fit under your grill!)

5 Float the pieces of bread on top of the soup, toasted sides down. Sprinkle the Cheddar on top and add the chunks of Stilton. Grill for 2-3 minutes until melted and bubbling. Serve at once, though take care when eating – it’s hot!

Cook’s tips: Just use Cheddar or Stilton if you prefer not to use both. You could serve the cheese toasts on the side if you don’t have bowls that will withstand the heat of the grill. 

Cost: £3.44  Cost per portion: 86p

Nutritional analysis per serving


17g protein

42g carbohydrate of which 9g sugars

27g fat of which 16.5g saturates

3.5g fibre

619mg sodium equivalent to 1.5g salt