A lower-calorie way to make Leek and Potato Soup
Leek and Potato Soup: silky leek soup thickened by its own crushed potatoes
Slow-softened leeks, floury potatoes, white beans, stock, and milk produce a silky pale soup without cream or a butter roux. This measured New Zealand recipe serves 8 at about 300 kcal per portion.
Leek and Potato Soup should still taste and look like the familiar dish, even when its richest ingredient is reduced. This version uses blend only part of the potato and white beans, then finish with low-fat milk rather than cream. Sweet leek, potato starch, bay, thyme, white pepper, chives, and warm milk preserve the gentle rounded flavour of the classic soup.
What changes—and what stays
From cream-rich leek and potato soup often contains 430–550 kcal to 300 calories
blend only part of the potato and white beans, then finish with low-fat milk rather than cream. Sweet leek, potato starch, bay, thyme, white pepper, chives, and warm milk preserve the gentle rounded flavour of the classic soup.
| Part | Conventional | Lighter | Why |
|---|---|---|---|
| Core method | More added fat or a heavier proportion | blend only part of the potato and white beans, then finish with low-fat milk rather than cream | Sweet leek, potato starch, bay, thyme, white pepper, chives, and warm milk preserve the gentle rounded flavour of the classic soup. |
How the flavor stays
Sweet leek, potato starch, bay, thyme, white pepper, chives, and warm milk preserve the gentle rounded flavour of the classic soup.
A cost rule that survives inflation
Leeks, potatoes, and canned beans form eight substantial bowls from basic produce and make efficient use of the whole leek's tender green section.
Ingredients for 8
Measure first; timing is part of how this recipe uses less fat.
- 1.3 kgfloury potatoes
- 900 gleeks
- 400 gwhite beans
- 1.4 Llow-salt vegetable stock
- 500 mllow-fat milk
- 18 golive oil
- 20 ggarlic, bay, and thyme
- 25 gchives, white pepper, and lemon
Method
Each step includes heat, a visible cue, and a recovery.
Step 1 · follow the visible cue
Prepare the measured components
Split and wash leeks until grit-free, cube potatoes evenly, and drain and rinse the white beans.
Look for: Leek layers are clean and vegetables and beans show no loose surface water.
Step 2 · follow the visible cue
Build the defining flavour
Sweat leeks slowly in measured oil with a pinch of salt, adding garlic and thyme only when soft.
Look for: Leeks look glossy and pale with no browning or liquid collecting beneath them.
Step 3 · follow the visible cue
Cook with controlled heat
Simmer potatoes, beans, bay, and stock until tender, then blend one third and return it to the pot.
Look for: Whole cubes yield to a knife while the blended portion thickens the broth evenly.
Step 4 · follow the visible cue
Finish and check the texture
Warm in the milk without boiling and finish with white pepper, lemon, and chopped chives.
Look for: Soup coats the spoon smoothly and stays pale without a skin, curds, or oil slick.
Calories at the same serving size
150 kcal · 33% lower estimated
The estimate uses the listed ingredients divided into 8 servings. Brand labels, trimming, and the amount left in the pan can change the result.
Keep the leftovers in the same spirit
Cool Leek and Potato Soup promptly and refrigerate in a sealed container for up to 2 days. Reheat only the portion needed until piping hot; keep crisp or fresh components separate where possible.
Cool Leek and Potato Soup promptly and refrigerate in a sealed container for up to 2 days. Reheat only the portion needed until piping hot; keep crisp or fresh components separate where possible.
Frequently asked questions
Can I prepare Leek and Potato Soup ahead?
Yes. Complete the preparation stages in advance, then do the final crisping, dressing, or assembly close to serving so Leek and Potato Soup keeps its intended texture. Cool Leek and Potato Soup promptly and refrigerate in a sealed container for up to 2 days. Reheat only the portion needed until piping hot; keep crisp or fresh components separate where possible.
Does the calorie estimate for Leek and Potato Soup include sides?
No. The estimate covers one portion made from the measured ingredients listed here; drinks, chips, salad dressing, and other side dishes need to be counted separately. blend only part of the potato and white beans, then finish with low-fat milk rather than cream.
- floury potatoes1.3 kg
- leeks900 g
- white beans400 g
- low-salt vegetable stock1.4 L
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Recipe development and nutrition review: CaloNote Editorial
This editorial recipe uses ingredient-level nutrition estimates and reviewed cooking principles. It is not represented as physically test-cooked, and nutrition is approximate.
Published and last reviewed: August 25, 2026
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