Colin FosterBy Colin Foster

Updated November 2026

A sheet pan butternut squash soup recipe lets the oven do the heavy lifting. Roasting the squash, onion and garlic on one tray caramelizes their sugars, which gives the soup a deeper, nutty flavor than simmering raw vegetables in a pot. You will end up with a smooth, creamy soup in about an hour, with only one pan to wash before the blender.

What You Need

  • 1 medium butternut squash (about 2 to 2.5 pounds), peeled, seeded and cut into 1-inch cubes
  • 1 large yellow onion, cut into wedges
  • 4 garlic cloves, skin on
  • 2 tablespoons olive oil, plus extra for the pan
  • 1 teaspoon kosher salt and ½ teaspoon black pepper
  • ½ teaspoon ground cumin or smoked paprika (optional)
  • 3 cups low-sodium vegetable or chicken broth
  • ½ cup heavy cream, coconut milk or plain yogurt (optional)
  • A rimmed half-sheet pan (about 13 by 18 inches), parchment paper and an immersion or countertop blender

Step-by-Step: Roast the Vegetables on the Sheet Pan

Preheat the oven to 425°F, with a rack in the center. Line the sheet pan with parchment or lightly oil it. Spread the squash cubes and onion wedges in a single layer, leaving a little space between pieces so they brown instead of steaming. Toss with the olive oil, salt, pepper and spices, then add the unpeeled garlic cloves to one corner.

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Roast for 30 to 35 minutes, stirring once halfway through. The squash is done when a knife slides into the cubes with no resistance and the edges show light browning. Squeeze the softened garlic out of its skin before blending.

Blend the Soup Smooth

Transfer the roasted vegetables to a pot or directly into a blender. Add 2 cups of the broth first, then blend until completely smooth, working in batches if needed. Keep the lid cracked or vent the blender, and fill it no more than halfway with hot liquids to avoid pressure building up.

Pour the purée into a saucepan over medium-low heat. Stir in the remaining broth a little at a time until the soup reaches your preferred thickness. Add the cream or yogurt last, off the heat if you are using dairy, and warm gently for two to three minutes without boiling.

Adjust the Seasoning

Taste before serving. Squash often needs more salt than you expect, and a squeeze of lemon juice or a pinch of nutmeg can brighten the flavor. Thin the soup with extra broth or water if it is too thick.

Common Mistakes to Avoid

  • Overcrowding the pan. Crowded vegetables steam and turn soft and pale. Use two sheet pans if needed.
  • Skipping the parchment. Squash sugars stick to bare metal, and scraping them off wastes browned flavor.
  • Filling the blender too full. Hot liquid expands, so blend in batches and vent the lid.
  • Boiling after adding dairy. Cream and yogurt can separate at high heat, so keep the soup at a gentle simmer or lower.
  • Underseasoning. Roasted squash is mild, so salt at the roasting stage and again at the end.

A sturdy rimmed half-sheet pan holds the vegetables without warping in a hot oven and makes the roasting step easy to clean. View on Amazon

A countertop blender produces the silkiest texture, especially for thick squash purées. View on Amazon

An immersion blender lets you purée the soup right in the saucepan, which means fewer dishes and no hot-liquid transfers. View on Amazon

FAQ

Do I need to peel the butternut squash?

Yes, for this recipe. The skin is tough and stays firm even after roasting, which can leave specks in the finished soup. Peel with a sharp vegetable peeler, then cut the squash in half and scoop out the seeds.

Can I make this soup ahead of time?

Yes. Store cooled soup in an airtight container in the refrigerator for up to four days, or freeze it for up to three months. Add a splash of broth when reheating, since the soup thickens as it chills.

Can I use pre-cut squash to save time?

Pre-cut cubes work well and cut the prep time considerably. Choose cubes that look fresh and are not dried out at the edges, and roast them on the same schedule.

Conclusion

A sheet pan butternut squash soup recipe gives you caramelized flavor with minimal fuss. Roast the vegetables until tender and browned, blend with warm broth, and finish with cream or yogurt if you like a richer bowl. Once you have the method down, it is an easy weeknight soup you can change with different spices.

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Colin Foster

About Colin Foster

Colin Foster is part of our editorial team and reviews and edits our home cooking with appliances guides, checking product details against manufacturer specifications and owner feedback.