Craving a taste of the sea but short on time? This Instant Pot Creamy Mussel Soup is your answer. It delivers all the sophisticated, briny flavor of a restaurant-quality bisque without the fuss. Tender mussels swim in a velvety, rich broth thickened with cauliflower and broccoli, making it a surprisingly healthy and low-carb indulgence. In just 15 minutes, you can have a bowl of pure comfort that feels both elegant and effortless. Get ready to impress yourself!
Ingredients
• 2 cups / 450g mussels, defrosted
• 1 lb / 450g cauliflower, chopped into florets
• 1 cup / 90g broccoli, chopped
• 2 cups / 475ml fish stock
• 1 cup / 240ml heavy cream
• ¼ cup / 25g Parmesan cheese, grated
• 2 tbsp / 28g butter, unsalted
• 1 tbsp / 15ml soy sauce
• 2 bay leaves
• ½ tsp / 1g fresh black pepper, ground
Instructions
1. Place the defrosted mussels in a large sieve and rinse them thoroughly under cold running water. Drain well, place in a bowl, and season with black pepper. Set aside.2. Set your Instant Pot to the ‘Sauté’ function. Once hot, add the butter, allowing it to melt completely. Add the chopped cauliflower and broccoli, stirring well to coat. Cook for 5 minutes until the vegetables begin to soften.3. Press ‘Cancel’ to turn off the Sauté function. Add the seasoned mussels to the pot, then pour in the fish stock and soy sauce. Tuck the bay leaves into the liquid.4. Secure the lid, ensuring the steam release handle is in the ‘Sealing’ position. Select ‘Manual’ or ‘Pressure Cook’ and set the timer for 5 minutes on high pressure.5. Once the cooking cycle is complete, carefully perform a quick release of the pressure. When the float valve drops, open the lid and remove and discard the bay leaves.6. Stir in the heavy cream and grated Parmesan cheese. Continue stirring gently until the cheese is fully melted and the soup is smooth and creamy. Serve hot.
Nutritional Information
• Per Serving: Calories 283 | Total Fats 20g | Net Carbs: 8g | Protein: 15.9g | Fiber: 3.5g
Pro Tips
• For a smoother, thicker consistency, use an immersion blender to partially blend the soup before stirring in the cream and Parmesan.
• Garnish with fresh chives or parsley to add a pop of color and a fresh flavor that complements the soup’s richness.
• For an extra layer of flavor, add a minced garlic clove and a finely chopped shallot to the butter and sauté for one minute before adding the cauliflower and broccoli.
FAQ
Q: Can I use fresh mussels for this recipe
A: Yes, you can use fresh mussels. Ensure they are thoroughly cleaned and debearded before adding them in step 3. The 5-minute pressure cooking time is sufficient. Discard any mussels that do not open after cooking.
Q: Is this Instant Pot mussel soup keto-friendly
A: Absolutely. With only 8g of net carbs per serving, this soup is designed to be keto-friendly and low-carb. It uses cauliflower and broccoli as a thickener instead of high-carb ingredients like potatoes or flour.
Q: What can I substitute for heavy cream
A: For a lighter but still creamy soup, you can use half-and-half. For a dairy-free alternative that pairs well with seafood, full-fat canned coconut milk is an excellent substitute.
Q: How can I make this soup even thicker
A: For a thicker, smoother consistency, use an immersion blender to blend the soup after pressure cooking but before you stir in the cream and cheese. Blending the cooked cauliflower and broccoli creates a naturally thick and velvety base.
