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Creamy Potato Leek Soup Recipe

Creamy potato leek soup is the silky winter warmer that tastes like a hug in a bowl: sweet leeks, buttery potatoes and a splash of cream, blended smooth and topped with chives. It takes one pot and 40 minutes. Gentle, comforting and perfect with crusty bread.

November 9, 2026 45 mins
A bowl of creamy potato leek soup with a cream swirl and chopped chives beside crusty bread on a wooden tableSoup and Stew
Prep15 mins
Cook30 mins
Total45 mins
Serves6
CourseSoup
CuisineFrench

This Creamy Potato Leek Soup Recipe is the silky winter warmer that tastes like a hug in a bowl. Sweet leeks soften in butter, potatoes melt into the broth, and a splash of cream turns the whole pot velvety smooth. It is gentle, comforting, and perfect with a hunk of crusty bread.

For more cozy favourites, try our One Pot Lasagna Soup, our Broccoli Cheddar Soup and our Homemade Dinner Rolls.

What Makes This Creamy Potato Leek Soup So Good

The magic is the leek. Cooked slowly in butter, leeks turn sweet and silky, and they give the soup a delicate onion flavour that no shortcut can match. The potatoes break down as they simmer, thickening the soup naturally without any flour.

The method is calm and forgiving. Everything cooks in one pot, the blender does the work, and the soup waits happily on the stove until you are ready to eat. It is the kind of recipe that makes a cold evening feel like a small luxury.

The Key Ingredients

A short list of simple staples is all this classic needs.

The Leeks

Use the white and pale green parts of the leeks, sliced thin and washed well to remove any grit. Leeks hide soil between their layers, so rinse them in a colander after slicing.

The Potatoes

Starchy potatoes like Russets or Yukon Golds break down beautifully and make the soup thick and creamy. Waxy potatoes hold their shape, so they are not the right choice here.

The Cream

A splash of heavy cream at the end gives the soup its velvety finish. Add it off the heat so it stays smooth, and save a little extra for swirling over each bowl.

How to Make Creamy Potato Leek Soup

The method is simple: soften, simmer, blend, then serve.

  • Wash the leeks: slice the white and pale green parts and rinse well in a colander.
  • Soften in butter: melt butter in a large pot and cook the leeks gently for 8 minutes.
  • Add garlic and potatoes: stir in the garlic, then the potatoes and stock.
  • Simmer until tender: cook for 20 minutes until the potatoes fall apart easily.
  • Blend until smooth: use an immersion blender to blend the soup velvety smooth.
  • Finish with cream: stir in the cream and season with salt, pepper and nutmeg.

Mistakes to Avoid

Skipping the Leek Wash

Gritty soup ruins the whole bowl. Leeks trap soil between their layers, so rinse the sliced leeks well in a colander before they go into the pot.

Boiling the Cream

Adding cream to a boiling pot can make it split. Stir the cream in off the heat, after blending, for a smooth, glossy finish.

Overblending the Potatoes

Blending too long can turn starchy potatoes gluey. Blend just until smooth, then stop, and never blend on the highest speed for minutes on end.

What to Serve with Creamy Potato Leek Soup

This is a gentle, silky soup, and it loves something crisp beside it:

  • Crusty bread, for dipping into the velvety soup
  • Homemade dinner rolls, for a warm, buttery side
  • Crispy bacon bits, for a salty crunch on top
  • A simple green salad, for a fresh contrast to the cream

Make It Your Own

The recipe welcomes tweaks. Stir in a handful of grated cheddar for a richer, cheesier soup, or add a spoonful of Dijon mustard for a gentle sharpness. A swirl of truffle oil on top makes it feel fancy, and crispy fried leeks add a lovely crunch. For a dairy free version, use olive oil instead of butter and coconut cream instead of dairy cream.

Make This Creamy Potato Leek Soup Today

Silky, gentle and ready in 40 minutes, this is the soup that turns a cold evening into a cozy one. Slice the leeks tonight and let the pot do the rest. Browse more of our Soup and Stew recipes for more winter warmers.

Recipe card

Creamy Potato Leek Soup Recipe

P Pin
Prep
15 mins
Cook
30 mins
Total
45 mins
Serves
6
Course
Soup
Cuisine
French

Ingredients

0/11 ready · tap to tick off

Equipment

  • Large pot
  • immersion blender
  • colander
  • sharp knife
  • ladle

Method

Tap a step when it’s done.

Nutrition

260 kcal

Calories

5 g

Protein

30 g

Carbohydrates

14 g

Fat

3 g

Fiber

4 g

Sugar

480 mg

Sodium

* Values are estimates.

Notes

  • Wash the sliced leeks well, as grit hides between the layers.
  • Starchy potatoes thicken the soup naturally as they break down.
  • Blend just until smooth to avoid a gluey texture.
  • Stir the cream in off the heat so it stays smooth and glossy.
  • Leftover soup keeps in the fridge for up to 4 days.
  • Freeze the soup before adding the cream, then stir the cream in when reheating.

Tips for success

  • Use the pale green parts of the leeks too, as they add sweetness.
  • Cook the leeks gently, as browning them changes the soup's flavour.
  • Cut the potatoes into even pieces so they cook at the same speed.
  • Warm the bowls before serving so the soup stays hot longer.
  • Top with crispy bacon bits or fried leeks for a lovely crunch.
  • A squeeze of lemon at the end brightens the whole pot.

Questions & answers

Can I make potato leek soup ahead of time?+
Yes. It keeps beautifully in the fridge for up to 4 days and the flavour improves overnight. Reheat gently and stir in the cream just before serving if you held it back.
Can I freeze potato leek soup?+
Yes, but freeze it before adding the cream, as cream can split when frozen. Thaw it in the fridge, reheat gently, and stir in the cream at the end.
What potatoes are best for potato leek soup?+
Starchy potatoes like Russets or Yukon Golds are best, as they break down and thicken the soup naturally. Avoid waxy potatoes, which hold their shape and stay chunky.
Is potato leek soup gluten free?+
Yes, as written it contains no flour or gluten. Check that your stock is labelled gluten free, and serve it with gluten free bread.
Can I make this soup dairy free?+
Yes. Use olive oil instead of butter and full fat coconut cream instead of dairy cream. The flavour is slightly different but still rich and comforting.