French onion soup

Onions are high in fibre and packed with minerals and vitamins. They are thought to reduce anxiety and depression, and can help you sleep – make the most of this abundant vegetable with this delicious autumn soup recipe

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Onions are an essential ingredient in every kitchen, but few people know about their health benefits. This rich, hearty soup from BBC Good Food celebrates the humble healer.

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BERLIN, GERMANY - APRIL 05: Onions seen at the biannual gardeners' market at the Botanical Gardens on April 5, 2014 in Berlin, Germany. Approximately 100 nurseries and gardening retailers are offering gardening enthusiasts tips and supplies this weekend. Spring weather has arrived in Germany and garden lovers across the country are busy planting for the new season.  (Photo by Clemens Bilan/Getty Images)
Onions are in season throughout autumn © Getty
You will need

• 50g butter

• 1 tbsp olive oil

• 1kg onion, halved and thinly sliced

• 1 tsp sugar

• 4 cloves garlic, thinly sliced

• 2 tbsp plain flour

• 250ml dry white wine

• 1.3l hot, strongly flavoured beef (or veg) stock

• 4-8 slices French bread

•  140g Gruyere cheese, finely grated

Method

1. Melt the butter with the oil in a large heavy-based pan. Add the onions and fry with the lid on for 10 minutes until soft. Sprinkle in the sugar and cook for 20 minutes, stirring frequently, until golden and caramelised. 

2.     Add the garlic and cook the onions for a
few more minutes, ensuring they don’t burn, then sprinkle in the flour and stir well. Increase the heat and keep stirring as you gradually add the wine, followed by the hot stock. Cover and simmer for 15-20 minutes.

3.     Toast the bread under the grill, then ladle the soup into heatproof bowls. Put a slice of toast on top of the soup and pile on the cheese. Grill until melted. Alternatively, complete the toast under the grill, then serve them on top.

For more delicious recipes, visit BBC Good Food

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Main image: BBC Good Food Magazine/Will Heap