This easy one-pot Roasted Butternut Squash Soup deserves a regular spot on your autumn and winter menu. Oven-roasted butternut squash becomes luxuriously creamy alongside sweet onions, roasted garlic, and fragrant herbs. After roasting, the vegetables are blended with warm broth for a smooth, velvety finish. Finish each bowl with crunchy croutons, crispy bacon, a drizzle of olive oil or cream, and freshly cracked black pepper for a comforting, satisfying main-dish soup.
Table of contents
- The perfect Roasted Butternut Squash Soup
- Is Butternut Squash Soup healthy?
- Ingredients for the soup
- How to prepare the soup
- Step by step
- How to serve Roasted Butternut Squash soup
- Tips, storage, and reheating this soup
The perfect Roasted Butternut Squash Soup
This recipe is designed for simplicity and flavor. By roasting the squash, onion, garlic, and herbs together in one oven-safe pot, you concentrate natural sweetness and develop a deep, caramelized flavor with very little hands-on time. After roasting, add warm broth and blend until smooth. The result is a creamy, naturally sweet soup that can be served as-is for a lighter option or enriched with a splash of heavy cream or nut milk for extra silkiness.
One-pot roasting keeps cleanup minimal and lets the oven do the work. Use a 5- or 6-quart Dutch oven or a deep, oven-safe casserole. Roasted garlic softens and adds a mellow, roasted garlic flavor that blends seamlessly into the soup. Fresh herbs like rosemary and thyme add an aromatic lift without complicating the process. With just a handful of ingredients, this recipe is both approachable and reliably delicious.
Is Butternut Squash Soup healthy?
Butternut squash is nutrient-dense and naturally low in calories. It provides fiber, vitamins, and mineral content that make it a great base for a healthy soup. When paired with onion, garlic, herbs, and broth, the soup is filling and nutritious. Choose vegetable broth to keep it vegan, or chicken broth for extra savory depth. Adding small amounts of healthy fats like extra virgin olive oil or a light drizzle of cream can enhance mouthfeel without overpowering the soup’s natural sweetness.
Ingredients for the soup
- 3-pound butternut squash, peeled, seeded, and cut into large chunks (about 2 pounds if using precut squash)
- 1 sweet onion, peeled and cut into chunks
- 2 small sprigs fresh rosemary
- 2 sprigs fresh thyme
- 1 head of garlic, top trimmed to expose the cloves
- 1/4 cup extra virgin olive oil
- 3 cups chicken or vegetable broth, warmed before blending
- Salt and freshly ground black pepper, to taste
How to prepare the soup
Preheat oven to 375°F (190°C).
- Roast vegetables
In a 5–6 quart oven-safe Dutch oven or deep casserole, combine the butternut squash chunks, onion pieces, whole garlic head, and fresh herbs. Drizzle generously with extra virgin olive oil and season lightly with salt and pepper. Cover the pot with its lid or tightly with foil. Roast for about 45 minutes, or until the vegetables are very tender and beginning to caramelize.
- Finish the roasted garlic and herbs
Remove the pot from the oven and carefully uncover. Remove the whole garlic head and let it cool slightly. Remove garlic skins and squeeze the soft roasted cloves into the pot. Strip herb leaves from stems and either discard the stems or keep only the tender leaves to blend with the vegetables.
- Puree the soup
Warm the broth and add it to the pot. Use an immersion blender to puree the mixture directly in the pot until smooth and creamy. If using a standard blender, work in batches and fill the blender no more than three-quarters full; return blended batches to the pot. For a smoother or thinner texture, add more warm broth. Taste and adjust salt and pepper.
- Heat and serve
Warm the soup gently over low heat until it is heated through. Serve in bowls with your preferred toppings and enjoy.
Step by step
How to serve Roasted Butternut Squash soup
Toppings take this soup from simple to special. Try crispy bacon pieces, homemade or store-bought croutons, a drizzle of extra virgin olive oil, or a small swirl of heavy cream or half-and-half. For texture, add roasted pumpkin seeds (pepitas), toasted walnuts, or crumbled feta or Parmesan. Serve with a wedge of crusty bread or a scoop of wild rice for a heartier meal. Season with freshly cracked black pepper and a pinch of flaky sea salt just before serving.
Tips, storage, and reheating this soup
Yes. The roasted vegetables puree into a naturally creamy base. For extra richness, stir in heavy cream, half-and-half, or unsweetened nut milk right before serving.
Yes. Portion cooled soup into airtight containers or freezer-safe bags and freeze. Thaw in the refrigerator overnight before reheating.
Reheat gently on the stove over low heat, stirring occasionally until warmed through. If the soup thickens after cooling, thin with a little warm broth or water.
Store leftover soup in sealed containers. Without dairy added, it will keep 4–5 days in the refrigerator. With cream added, aim for 3–4 days.
Absolutely. Using vegetable broth makes this an easy vegan option.
If you try this recipe, please leave a comment with your tweaks and favorite toppings — it helps other readers and inspires new variations.
All content and photographs ©Claudia’s Table and claudiastable.com
One Pot Roasted Butternut Squash Soup
Ana Coronado
A simple, oven-roasted butternut squash soup that blends to a silky texture. Minimal prep, one pot, and rich autumn flavors.
Prep Time: 15 mins
Cook Time: 45 mins
Total Time: 1 hr
Servings: 4
Calories: 296 kcal (approx.)
Equipment
- 1 Dutch oven, 5–6 quart, or deep oven-safe casserole
- 1 Immersion blender or a standard blender
Ingredients
- 3 pounds butternut squash, peeled, seeded, and cut into large chunks (about 2 pounds if using precut)
- 1 medium sweet onion, peeled and chunked
- 2 small sprigs fresh rosemary
- 2 sprigs fresh thyme
- 1 head fresh garlic, top removed to expose cloves
- 1/4 cup extra virgin olive oil
- 3 cups chicken or vegetable broth, warmed
- Salt and freshly ground black pepper, to taste
Optional toppings
- Extra virgin olive oil or a swirl of cream
- Crispy bacon, crumbled
- Croutons (homemade or store-bought)
- Toasted nuts or seeds, grated Parmesan or crumbled feta
Instructions
- Preheat the oven to 375°F (190°C).
- Place squash, onion, whole garlic head, and herbs in the Dutch oven. Drizzle with olive oil and season lightly. Cover with the lid or foil.
- Roast for about 45 minutes, until the vegetables are very tender and starting to caramelize.
- Remove the pot from the oven. Take out the garlic head, remove skins, and squeeze the soft cloves into the pot. Strip the herb leaves from stems and add to the vegetables if desired.
- Warm the broth and add it to the pot. Use an immersion blender to puree until smooth. If using a standard blender, puree in batches and return to the pot.
- Adjust consistency with more warm broth if needed. Season to taste with salt and pepper.
- Warm through gently and serve with your favorite toppings.
Notes
If using an enameled Dutch oven, protect the surface by using an immersion blender with a silicone guard to avoid scratching. For a richer soup, stir in a small amount of cream or half-and-half just before serving.
Nutrition
Serving size: about 2 cups. Calories are approximate and intended as a guide.
Check out our New & Delicious posts below
- Simple Basil Pesto Vinaigrette (with 5 ingredients!)
- The Easiest And Most Delicious BBQ Chicken Pizza
- Easy Mexican Shrimp Cocktail (Coctel de Camarones)
- Flavorful Roasted Cauliflower Salad Recipe
- Bacon Onion Jam with Chipotle