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Smooth Mushroom Soup with Cheese Toast

Mushrooms cooked down hard with leek and thyme, thickened with potato and milk powder rather than cream, and served with a small round of soft cheese toast to dip and soften.

Smooth Mushroom Soup with Cheese Toast. Mushrooms cooked down hard with leek and thyme, thickened with potato and milk powder rather than cream, and served with a small round of soft cheese toast to dip and soften.
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Prep 12 minCook 30 minServes 2

Ingredients

Why metric?

Metric avoids regional spoon ambiguity. US uses 5 mL tsp, 15 mL tbsp and 240 mL cup. Small masses stay in grams unless a verified recipe conversion exists. More on measurements

  • 250 g mushrooms, sliced thin
  • 180 g potato, peeled and diced small
  • 1 small leek, white part only, sliced thin (80 g)
  • 1 garlic clove, crushed (5 g)
  • 22 g unsalted butter
  • 100 ml reduced-salt stock (100 g)
  • 60 ml water (60 g)
  • 200 ml reduced-fat milk (206 g)
  • 60 g skim milk powder
  • 3 slices soft white bread, crusts cut off (85 g trimmed)
  • 60 g cheddar, finely grated
  • 0.5 g dried thyme
  • black pepper, to taste

Method

  1. Melt 14 g of the butter in a saucepan over medium-low heat and cook the leek and garlic 6-8 minutes, stirring, until the leek is limp and translucent. Do not let it take colour.
  2. Add the mushrooms and the thyme, raise the heat and cook about 8 minutes. They release their water, the pan floods, and then the liquid boils away and the mushrooms start to squeak against the base. That squeak is the signal to move on.
  3. Add the potato, the stock and the water, bring to a simmer and cook 15 minutes with the lid on, until a piece of potato falls apart when you press it against the side of the pan.
  4. Blend until completely smooth. Mushroom skin is the last thing in the pot to break down, so run the blender longer than feels reasonable, then pass the soup through a sieve if you want it flawless.
  5. Return it to the pan, whisk in the milk and the milk powder and warm through without boiling. It should coat the back of a spoon and come off it in a sheet rather than in blobs.
  6. Butter the trimmed bread with what is left, cover with the cheddar and grill until the cheese has melted flat but not browned. Cut into small squares and serve alongside; dropped into the hot soup they go soft in under a minute.
  7. If lunch is the sitting you find hardest, eat the soup now and the toast an hour later. Split that way it becomes two small meals instead of one larger one, and the only thing lost is the temperature of the toast.

Safety and storage

Keeps
3 days refrigerated below 5°C
Reheat to
steaming hot, at least 75°C

Cool it fast: split large amounts into shallow containers as soon as it stops steaming, and have it in the fridge within two hours. Reheat once only, until steaming hot right through, at least 75°C in the centre.

Where these temperatures come from

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