close up image of low carn and gluten-free Norwegian fish soup (fiskesuppe)

Norwegian Fish Soup Recipe (Fiskesuppe)

This fish soup recipe is a low carb and gluten-free adaptation of the classic Norwegian fiskesuppe, a one pot salmon chowder prepared in less than 30 minutes. It's perfect for those chilly, busy days!

Course Main Course
Cuisine American
Keyword fish soup, fish soup recipe, fiskesuppe, Norwegian fish soup, salmon chowder
Prep Time 10 minutes
Cook Time 16 minutes
Servings 4 people
Calories 538 kcal


  • 2 TBSP olive oil
  • 1 white or yellow onion small diced
  • 1 cup leek stalk (1 green leaf chopped and 1 cup white stalk sliced)
  • 4 garlic cloves minced
  • 4 cups fish broth or stock
  • 1 lb cauliflower frozen or fresh
  • salt and pepper to taste (about 1 and 1/2 teaspoon salt, and 1/2 teaspoon pepper)
  • 1/4 tsp cayenne pepper
  • 1 cup heavy cream
  • 1 lb salmon skinless and cut into chunks
  • 1 carrot peeled and cut into small chunks (skip if on a KETO diet)
  • 1 lemon juiced
  • 1-2 TBSP fresh dill or chives chopped


  1. Heat a large pot over medium heat. Add oil and cook onion and leek for about 3-4 minutes. Then add garlic and cook for about 1 minute, stirring every now and then. Do not let brown! Transfer about half of the veggies to a blender cup; reserve.

  2. Add broth and cauliflower to the pot and let cook over high heat for about 8-10 minutes or until tender. Transfer all the cauliflower and about 1 cup of the broth to the blender with salt, pepper, cayenne, and heavy cream. Blend with half of the reserved cooked veggies until smooth. Pour back into the pot.

  3. Add the fish and carrots. Let cook over medium-high heat for about 5-6 minutes. Remove pot from the heat and stir in lemon juice. Garnish top of soup with fresh dill or chives.  Serve fish soup by itself or with a hard-crusted bread.  

Recipe Notes

Store leftovers in an airtight container in the fridge for up to 3 days. Freeze for up to 4 months. 

Nutrition Facts
Norwegian Fish Soup Recipe (Fiskesuppe)
Amount Per Serving
Calories 538 Calories from Fat 342
% Daily Value*
Fat 38g58%
Saturated Fat 16g80%
Cholesterol 144mg48%
Sodium 195mg8%
Potassium 1321mg38%
Carbohydrates 21g7%
Fiber 4g16%
Sugar 6g7%
Protein 32g64%
Vitamin A 3885IU78%
Vitamin C 76mg92%
Calcium 124mg12%
Iron 3mg17%
* Percent Daily Values are based on a 2000 calorie diet.