Vegetarian German Cheese Soup (Vegetarische Käsesuppe)

Vegetarische Käsesuppe is a creamy German-style cheese soup with the comforting weight of potatoes, softened leeks and a savoury stock base. Rather than being heavy or one-note, this version uses the potatoes for body, a light cornflour thickening for gloss, and grated cheddar stirred in gently so the soup stays smooth. Nutmeg, black pepper and fresh chives keep the richness in check and give the bowl a familiar Central European feel. It is the kind of soup that works well for a simple lunch or cold-weather supper, especially with bread alongside for dipping.
Cuisine style German comfort food
Cooking style One-pot cooking • Minimal cleanup
Time commitment Under 1 hour

Why this recipe works

  • Smooth, lightly thickened base: Potatoes and a cornflour slurry give the soup body without making it heavy.
  • Gentle savoury depth: Softened leeks, cheese, nutmeg and black pepper create a rounded flavour that stays mild and comforting.
  • Simple one-pot cooking: The leeks, potatoes, stock and cheese all cook in the same pot, keeping the method straightforward.

Get the most out of this recipe

Ingredient notes

  • Clean the leeks well: Leeks can hold grit between their layers, so rinse them thoroughly after slicing lengthways.
  • Choose the cheese carefully: Use a good melting cheese and check for vegetarian rennet if cooking for strict vegetarians.
  • Keep the nutmeg subtle: Nutmeg should support the creamy cheese flavour rather than dominate the soup.

Texture tips

  • For a smoother finish: Mash some of the tender potatoes against the side of the pot before thickening the soup.
  • Avoid a grainy texture: Lower the heat before adding the cheese and stir it in gradually so it melts evenly.
  • Let the thickener work: After adding the cornflour mixture, simmer briefly until the soup looks glossy and lightly thickened.

Make-ahead tips

  • Cook ahead if needed: The soup can be made in advance, cooled quickly and refrigerated for up to 3 days.
  • Reheat gently: Warm over a low heat, stirring often, and avoid boiling to help keep the cheese and cream smooth.

Serving ideas

  • Serve with bread: Crusty bread, rye bread or a soft roll makes a practical pairing for the creamy soup.
  • Finish with chives: Fresh chives add a clean onion note that lifts the richness of the cheese.

Equipment you'll need

Ingredients
Instructions
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  1. Trim the leeks, slice lengthways, then rinse well to remove any grit; slice thinly. Peel the potatoes and cut into small, even cubes. Grate the cheddar and set aside.
  2. Melt the butter in a large pot over a medium heat. Add the leeks with a pinch of the salt and cook for 6 to 8 minutes, stirring, until softened but not browned.
  3. Add the potatoes and vegetable stock, then bring to a gentle simmer. Cook for 12 to 15 minutes, until the potatoes are tender when pierced with a knife.
  4. Whisk the cornflour with the water until smooth. Stir it into the simmering soup and cook for 2 to 3 minutes, stirring, until lightly thickened and glossy.
  5. Turn the heat to low and stir in the cheddar a handful at a time until melted and smooth. Stir in the double cream, then season with nutmeg, black pepper and the remaining salt. Warm gently for 2 minutes, without boiling.
  6. Finely snip the chives. Ladle the soup into bowls and scatter the chives over the top. Serve hot.

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Recipe notes

Tips

  • For a smoother soup, mash some of the potatoes against the side of the pot with a wooden spoon before adding the cornflour slurry.
  • Keep the heat low once the cheddar and double cream go in; boiling can make the soup split or turn grainy.
  • If serving later, cool the soup quickly, then reheat gently over a low heat, stirring often, until piping hot.

Substitutions

  • Replace Cheddar cheese with Gruyere cheese for a nuttier, more traditional German-style flavour.
  • Replace Double cream with Crème fraîche for a slightly tangier finish; add it off the heat and warm gently.
  • Replace Butter with Extra-virgin olive oil for a lighter base.

Storage

  • Refrigerate up to 3 days
  • Cool, cover and refrigerate within 2 hours. Reheat gently in a saucepan over a low heat, stirring often, until piping hot; avoid boiling to keep the texture smooth.

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Vegetarian German Cheese Soup (Vegetarische Käsesuppe)
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Recipe overview

  • Servings: 4 servings
  • Total time: 45min (20min active)
  • Difficulty: Easy
  • Cuisine: German
  • Allergens:
    Milk
Beginner friendly One pot Kid friendly

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