The best french onion soup recipes are the ones that include slow cooking…and Gruyère, that delicious, melting cheese on top!
Slow cooking will bring out the sweetness of the onions and will really make a difference to the taste.
This easy french onion soup recipe is wonderfully warming and nourishing – perfect for winter.
Soupe à L’Oignon Gratinée
750g onions, finely sliced
2 tbspns flour
1.5 litres (approx 6 cups) beef stock
200ml white wine
1 bay leaf
sea salt and black pepper
1/2 baguette, cut into small rounds
100g Gruyère cheese, grated
Melt butter in large saucepan. Add onions and cook on low heat for at least 30 minutes (ideally an hour), stirring frequently until the onions soften and turn a golden colour.
Add flour and slowly pour in stock and wine. Continue stirring and bring to simmering point.
Add bay leaf, salt (not too much) and pepper, cover with a lid, turn down the heat to low and simmer gently for 40 minutes.
Just before serving, place grated cheese on top of the baguette slices and toast under the grill until melted.
Serve soup in bowls with the toasts floating on top.