Quick Answer
To make butternut squash soup, roast cubed squash at 425 F until soft and browned, then simmer it with sauteed onion, garlic and broth for about 15 minutes.
Blend until silky, season with salt, pepper and a pinch of nutmeg, and stir in a little cream or coconut milk if you like it richer.
One medium squash makes about four bowls, and the soup freezes beautifully for busy weeknights.
What Ingredients Do You Need?
- 1 medium butternut squash (about 3 pounds), peeled, seeded and cubed
- 2 tablespoons olive oil, divided
- 1 medium onion, chopped
- 2 cloves garlic, minced
- 1 small apple or carrot, chopped (optional, for sweetness)
- 4 cups vegetable or chicken broth
- 1/2 teaspoon ground nutmeg or cinnamon, plus salt and pepper
- 1/2 cup heavy cream or canned coconut milk (optional)
How Do You Peel and Cut a Butternut Squash Safely?
Butternut squash has a hard, slippery skin, so work slowly. Cut a thin slice off the top and bottom so it sits flat on the board.
Peel it with a sharp Y peeler, then cut the neck from the round bulb. Halve the bulb and scoop out the seeds with a spoon.
If the squash is very hard, microwave it whole for 2 to 3 minutes after poking a few holes in the skin. It softens just enough to make cutting easier.
Why Should You Roast the Squash First?
Roasting caramelizes the natural sugars and gives the soup a deep, nutty flavor. Boiled squash makes a soup that tastes flat and watery by comparison.
Toss the cubes with 1 tablespoon olive oil and a pinch of salt and spread them on a sheet pan in a single layer. Roast at 425 F for 30 to 40 minutes, flipping once, until they are fork tender with browned edges.
For an easier shortcut, roast halved squash cut side down and scoop out the soft flesh later. You skip peeling entirely.
How Do You Make Butternut Squash Soup, Step by Step?
1. Saute the aromatics. Heat the remaining olive oil in a large pot over medium heat. Cook the onion for 6 to 8 minutes until soft, then add the garlic and apple or carrot for another 2 minutes.
2. Add the squash and broth. Add the roasted squash and broth. Bring it to a boil, then lower to a simmer for 15 minutes so the flavors blend.
3. Blend. Use an immersion blender right in the pot, or blend in batches in a countertop blender. Fill it no more than halfway and vent the lid so hot steam can escape.
4. Finish. Stir in the nutmeg and the cream or coconut milk. Add more broth if it is too thick, then season to taste.
How Do You Make It Creamy Without Cream?
Butternut squash is naturally creamy once blended, so you do not need dairy at all. A few easy swaps add body:
- Blend in a small boiled potato.
- Add 1/4 cup soaked raw cashews before blending.
- Use canned coconut milk for a dairy free, slightly sweet finish.
- Stir in a spoonful of plain Greek yogurt off the heat.
What Are the Best Toppings?
- Toasted pumpkin seeds or roasted squash seeds
- A swirl of cream, yogurt or coconut milk
- Crispy sage leaves fried in butter
- Croutons or a grilled cheese on the side
- A drizzle of chili oil or a pinch of smoked paprika
A squeeze of lemon or a dash of apple cider vinegar just before serving brightens the whole bowl.
How Do You Cool and Store the Soup?
Do not put a big pot of hot soup straight into the fridge. MSU Extension advises dividing large batches into shallow containers so they cool quickly, and cooling food from 140 F to 70 F within two hours.
Refrigerated soup keeps for 3 to 4 days in a covered container. Reheat it until it is steaming hot all the way through.
How Do You Freeze Butternut Squash Soup?
This soup freezes very well. The National Center for Home Food Preservation recommends cooling soups quickly and packing them in freezer containers, leaving a little headspace because liquids expand as they freeze.
For the best texture, freeze the soup before adding cream, then stir the cream in when you reheat. Use it within about 3 months for the best flavor.
Thaw overnight in the fridge or reheat gently from frozen over low heat, stirring often.
Can You Can Butternut Squash Soup at Home?
No. NCHFP only offers a tested home canning process for winter squash and pumpkin in cubes, not mashed or pureed. Pureed squash is too dense for heat to reach the center reliably during canning.
That means there is no safe home canning method for a blended soup like this. Freeze it instead.
What Flavor Variations Can You Try?
- Thai inspired: add red curry paste, ginger and coconut milk, then finish with lime.
- Smoky: stir in smoked paprika and a little chipotle in adobo.
- Apple and sage: simmer a chopped apple with the squash and fry sage leaves for garnish.
- Curried: bloom 2 teaspoons of curry powder with the onion.
- Roasted garlic: roast a whole head of garlic with the squash and blend it in.
What Do You Serve With Butternut Squash Soup?
A grilled cheese sandwich, warm crusty bread or a green salad with toasted nuts turns a bowl of soup into a full dinner.
For a dinner party, serve small cups as a starter before roast chicken or pork. The soup also makes a nice packed lunch in an insulated jar.
Frequently Asked Questions
Can I use frozen squash?
Yes. Roast it from frozen, adding 10 minutes or so.
Why is my soup bitter?
The garlic may have burned. Add it after the onion softens.
Can I make it in a slow cooker?
Yes. Cook everything on low for 6 hours, then blend.
Is it healthy?
Yes. Butternut squash is rich in vitamin A and fiber.
The Bottom Line
The best butternut squash soup starts with roasted squash for deep flavor, a simple simmer with onion and broth, and a thorough blend.
Cool it quickly, freeze extras before adding cream, and skip home canning, since blended squash cannot be safely canned.
