Velvety Roasted Butternut Squash Bisque with Sage-Brown Butter

🌍 Cuisine: French-American
🏷️ Category: Appetizer
⏱️ Prep: 20 minutes
🍳 Cook: 50 minutes
👥 Serves: 4-6 servings

📝 About This Recipe

This luxurious bisque celebrates the deep, caramelized sweetness of oven-roasted butternut squash, elevated by the aromatic warmth of fresh sage and a hint of nutmeg. Naturally gluten-free, the soup achieves its signature silkiness through a slow simmer with aromatic root vegetables and a touch of heavy cream rather than flour-based thickeners. It is a quintessential autumn comfort dish that balances savory depth with a delicate, honeyed finish, making it an elegant starter or a cozy main course.

🥗 Ingredients

The Roast

  • 3 pounds Butternut Squash (peeled, seeded, and cut into 1-inch cubes)
  • 3 tablespoons Extra Virgin Olive Oil
  • 1 tablespoon Maple Syrup (grade A dark preferred)
  • 1 teaspoon Kosher Salt and Black Pepper (to taste)

The Aromatics and Base

  • 2 tablespoons Unsalted Butter
  • 1 large Yellow Onion (finely diced)
  • 2 medium Carrots (peeled and sliced)
  • 3 cloves Garlic (minced)
  • 1 tablespoon Fresh Ginger (grated)
  • 4-5 cups Vegetable or Chicken Stock (low-sodium, gluten-free certified)
  • 6-8 pieces Fresh Sage Leaves (whole)
  • 1/4 teaspoon Ground Nutmeg (freshly grated if possible)
  • 1/2 cup Heavy Cream (at room temperature)

For Garnish

  • 1/4 cup Roasted Pepitas (pumpkin seeds)
  • 2 tablespoons Crème Fraîche (for swirling)
  • 2 sprigs Fresh Thyme (leaves only)

👨‍🍳 Instructions

  1. 1

    Preheat your oven to 400°F (200°C). Line a large rimmed baking sheet with parchment paper for easy cleanup.

  2. 2

    In a large bowl, toss the cubed butternut squash with olive oil, maple syrup, salt, and pepper until evenly coated. Spread them in a single layer on the baking sheet.

  3. 3

    Roast the squash for 30-35 minutes, tossing halfway through, until the edges are golden brown and caramelized and the centers are fork-tender.

  4. 4

    While the squash roasts, melt the butter in a large Dutch oven or heavy-bottomed pot over medium heat.

  5. 5

    Add the diced onion and carrots. Sauté for 8-10 minutes until the onions are translucent and the carrots have softened slightly.

  6. 6

    Stir in the minced garlic, grated ginger, and whole sage leaves. Cook for 1-2 minutes until highly fragrant, being careful not to burn the garlic.

  7. 7

    Add the roasted butternut squash into the pot, scraping any caramelized bits from the parchment paper into the pot as well.

  8. 8

    Pour in 4 cups of stock, the nutmeg, and additional salt and pepper. Bring the mixture to a gentle boil, then reduce heat to low and simmer for 15 minutes to allow flavors to meld.

  9. 9

    Remove the whole sage leaves if you prefer a milder flavor, or leave them in for a more robust herbal profile.

  10. 10

    Using an immersion blender, puree the soup until completely smooth. Alternatively, transfer to a stand blender in batches, ensuring you vent the lid to allow steam to escape.

  11. 11

    Stir in the heavy cream and return the pot to low heat. If the bisque is too thick, add the remaining cup of stock until your desired consistency is reached.

  12. 12

    Taste and adjust seasoning with more salt, pepper, or a tiny squeeze of lemon juice to brighten the flavors.

  13. 13

    Ladle the hot bisque into bowls. Garnish with a swirl of crème fraîche, a sprinkle of toasted pepitas, and fresh thyme leaves.

💡 Chef's Tips

Roasting the squash is essential; it develops sugars that raw simmering cannot replicate. For a vegan version, substitute the butter with coconut oil and the heavy cream with full-fat canned coconut milk. Always use room temperature cream when adding it to hot soup to prevent curdling. If using a stand blender, never fill it more than halfway with hot liquid to avoid 'explosions' from steam pressure. A microplane is the best tool for grating fresh ginger and nutmeg for the finest texture.

🍽️ Serving Suggestions

Pair with a crisp, gluten-free artisan bread toasted with garlic butter. Serve alongside a bright kale and apple salad with a cider vinaigrette. A chilled glass of Chardonnay or a dry Hard Cider complements the squash's sweetness beautifully. For a protein boost, top with crumbled crispy pancetta or bacon. Excellent as a 'shooter' appetizer for holiday parties served in small espresso cups.