Onion soup

Onion soup appears in 2 cookbooks in the collection. Each sheet is the recipe as that book's index lists it; open one to see it in the book.

Onion soup
Ingredients
Groundnut or grapeseed oil
1kg peeled and finely sliced onion (approx. 5 large onions)
2 star anise
30g unsalted butter
150g dry white wine
1kg beef stock (p.40)
2 tbsp dry madeira, plus extra for finishing
Salt and black pepper
Sherry vinegar
To finish and serve
2 slices of sourdough bread, halved
Unsalted butter, for frying
Dijon mustard
100g grated gruyère cheese
1 tbsp chopped chives
2 spring onions, finely sliced
57Heston Blumenthal At Home
Heston Blumenthal At Home, p. 57
Onion Soup
Main ingredients
Onion
439The Noma guide to fermentation
The Noma guide to fermentation, p. 439