French Onion Soup
This is a great meal to make when there’s nothing much left in the fridge. Cheesy croutons don’t need to be omitted just because you’re cutting back. You can use any hard, full-flavoured cheese instead of the Gruyére but I think its nuttiness compliments the richness of the onions particularly well.
Prep Time 20 minutes mins
Cook Time 50 minutes mins
Total Time 1 hour hr 10 minutes mins
- 2 tsp sunflower oil
- 6 medium onions, thinly sliced
- 1 tbsp fresh thyme leaves, plus extra to garnish
- 2 tbsp plain flour
- 1.5 litres hot beef stock (made with 2 stock cubes)
- 12 thin slices of baguette (about 15g per slice), cut diagonally
- 50 g Gruyere cheese, finely grated
- flaked sea salt
- ground black pepper
To freeze
Freeze the cooled soup by dividing into freezer-proof containers. Cover tightly and freeze for up to 3 months.
Freeze the croutons by toasting the bread and topping with the cheese, but do not grill again. Open freeze the toast until solid and stack in a freezer-proof container interleaving with baking parchment.
To serve
Warm the soup through gently in a large saucepan until thawed then simmer until piping hot, stirring regularly.
Grill the croutons from frozen, not too close to the heat, for 5-7 minutes or until the cheese has melted and the bread is piping hot.