Creamy Kohlrabi & Potato Soup
A velvety, comforting soup that transforms humble kohlrabi and potato into something truly special. The kohlrabi brings a delicate, slightly sweet cabbage-like flavor while potatoes add body and creaminess without needing heavy cream. A simple, rustic European-style soup ready in under 40 minutes.
For 4 servings
- prep
Peel and cube the kohlrabi and potatoes.
Trim the stems and root ends from the kohlrabi. Peel away the tough outer skin with a knife. Cut both kohlrabi and potatoes into 1-inch cubes. Keep them in a bowl of water to prevent browning.
TIPKohlrabi skin is fibrous — peel generously until you reach the crisp, pale flesh. - saute · ~6 min
Sauté the onion and garlic.
Melt butter in a large soup pot over medium heat. Add chopped onion and cook until soft and translucent, about 4-5 minutes. Add minced garlic and sauté for another minute until fragrant.
- boil · ~20 min
Add vegetables and water, then simmer.
1.Drain the cubed kohlrabi and potatoes and add them to the pot.2.Pour in 3 cups of water and add the salt.3.Bring to a rolling boil, then reduce heat to low.4.Cover and let it simmer for 18-20 minutes until vegetables are fork-tender.TIPDon't overcook — the vegetables should mash easily when pressed but still hold their shape. - mix · ~2 min
Blend the soup until silky smooth.
Remove the pot from heat. Use an immersion blender to puree the soup directly in the pot until completely smooth. If using a countertop blender, blend in batches and return to the pot.
TIPFor a countertop blender, remove the center cap and cover with a towel to let steam escape. - simmer · ~3 min
Stir in warm milk and seasonings.
1.Place the pot back on low heat.2.Pour in the warm milk and stir to combine until heated through, about 2 minutes.3.Add freshly ground black pepper and a pinch of nutmeg.4.Taste and adjust salt if needed.TIPWarming the milk beforehand prevents it from curdling when it hits the hot soup. - garnish
Ladle into bowls and garnish with chives.
Divide the hot soup evenly among serving bowls. Sprinkle chopped fresh chives over each bowl and add a final crack of black pepper. Serve immediately with crusty bread.
What to keep in mind.
7 tips from the recipe — small details that make a real difference to the final dish.
- 1Peel kohlrabi generously to remove all fibrous outer skin for a silky texture.
- 2Cut vegetables into uniform 1-inch cubes so they cook evenly.
- 3Warm the milk before adding to prevent curdling in the hot soup.
- 4Use an immersion blender to puree directly in the pot for easier cleanup.
- 5Taste and adjust salt after blending, as kohlrabi's sweetness can mask seasoning.
- 6For an extra-creamy finish, add a small knob of butter when blending.
- 7Store leftover soup in the fridge for up to 4 days; it thickens upon standing.
Adapt it for your goals.
Vegan
Swap butter for olive oil and use unsweetened oat or soy milk instead of cow's milk. The result is a plant-based soup that stays creamy and satisfying.
herb infusedHerb-infused
Add a sprig of fresh thyme or a bay leaf to the simmering water. Remove before blending for a subtle herby note that complements the kohlrabi.
smokySmoky
Stir in 1/2 teaspoon smoked paprika after blending for a warm, smoky depth that contrasts beautifully with the sweet kohlrabi.
curry spicedCurry-spiced
Add 1 teaspoon of mild curry powder along with the garlic. This gives the soup a golden hue and a gentle, savory spiciness.
Why this is on our healthy list.
Rich in Vitamin C
Kohlrabi is packed with vitamin C, supporting immune health and collagen production, all in a light, low-calorie vegetable.
Good Source of Potassium
Both kohlrabi and potato provide potassium, which helps maintain healthy blood pressure and muscle function.
Low in Fat and Calories
With just butter and milk, this soup is a light, satisfying meal that provides creaminess without heavy calories.
Digestive Fiber
The vegetables in this soup deliver dietary fiber, promoting healthy digestion and a feeling of fullness.
Frequently asked questions
Yes, swap the water for an equal amount of low-sodium chicken or vegetable broth for a richer, more savory flavor base.



