Easy Butternut Squash Sweet Potato Soup

I’m Linda Sandra — a Charleston home cook who believes every meal should feel like a hug, and this Butternut Squash Sweet Potato Soup is one of my go-to ways to prove it.

There’s something about the combo of velvety butternut squash and naturally sweet potatoes that just screams cozy autumn vibes. And honestly? This soup is so silky and comforting, you’ll want to make it on repeat all season long.

Little Snapshot: What This Recipe Delivers

This Butternut Squash Sweet Potato Soup blends roasted (or simmered) butternut squash, sweet potatoes, and warming spices with creamy coconut milk for a silky, dairy-free fall soup that’s ready in under an hour. It’s nourishing, naturally sweet, and perfect for busy weeknights or meal prep.

Nutritional Peek

Here’s what you’re getting in each cozy bowl (approximate values per serving):

Nutrient	Amount per Serving
Calories	165 kcal
Protein	3g
Carbohydrates	22g
Fat	8g
Fiber	4g
Sugar	6g

Ingredients

Let’s talk about what makes this Easy Autumn Soup Recipe so good. The ingredient list is short, simple, and probably already hanging out in your kitchen.

Amount	Ingredient
1 small (700-900g)	Butternut squash, peeled and chopped into 2-inch chunks
2 medium (275g)	Sweet potatoes, peeled and chopped into 2-inch chunks
1	Yellow onion, sliced
3 cloves	Garlic, peeled (leave ’em whole — so easy)
2 tablespoons	Olive oil
400 ml (1 ½ cups)	Full-fat coconut milk (save 2 tablespoons for that pretty swirl on top)
1 teaspoon	Ground cumin
½ teaspoon	Cinnamon (trust me on this)
¼ teaspoon	Chili powder
1 teaspoon	Chili flakes
750 ml (3 cups)	Vegetable or chicken stock (or just water works too)
To taste	Salt and pepper

Tools You’ll Actually Use

You don’t need a fancy kitchen to make this happen. Here’s what you’ll grab:

• Large roasting tin (if you’re roasting the veggies)
• Medium saucepan
• Immersion blender or regular blender
• Sharp knife and cutting board
• Measuring cups and spoons
• Whisk

Step-by-Step Instructions

Alright, let’s make this Butternut Squash Sweet Potato Soup happen. I’m giving you two paths here — roasting (for extra caramelized flavor) or straight to the pot (for busy nights).

Optional Roasting Path:

1. Get that oven going: Preheat to 190°C (375°F).
2. Prep your veggies: Peel and chop the butternut squash and sweet potatoes into big 2-inch chunks. Slice the onion into half-moons. Toss everything — including those whole garlic cloves — into a roasting tin.
3. Season and roast: Drizzle with olive oil and sprinkle with the cumin, cinnamon, chili powder, salt, and pepper. Roast for about 30 minutes until everything’s tender and getting those gorgeous golden edges. Your kitchen’s gonna smell amazing.

Cook the Soup:

4. Into the pot: Whether you roasted or not, transfer your veggies to a medium saucepan. Pour in your stock or water until everything’s covered (about 4-6 cups). Crank the heat to high and bring it to a boil.
5. Cook ’til tender: Let it bubble away until a knife slides through the veggies like butter — about 10-15 minutes if you roasted, closer to 25-30 if you didn’t.
6. Blend it smooth: Use an immersion blender right in the pot (easiest option) or carefully transfer to a regular blender. Blend until it’s silky smooth and gorgeous.
7. Make it creamy: Stir in your coconut milk and whisk it together. Add those chili flakes now, then taste and adjust your seasonings. Need it thinner? Add a splash more stock.
8. Serve it up: Ladle into bowls, swirl that reserved coconut milk on top, and finish with fresh coriander if you’ve got it.

Pro Tips & Gentle Guidance

This Fall Soup With Butternut Squash is pretty forgiving, but here are some tricks to make it even better:

• On the spices: Start with the amounts I’ve listed, but definitely taste before serving. Some butternut squash is sweeter than others, so you might want a little extra cumin or chili to balance things out.
• Blending safety: If you’re using a regular blender, let the soup cool for a few minutes first and blend in batches. Hot liquid can explode out of the top (ask me how I know), so leave the lid slightly vented and cover with a kitchen towel.
• Make it even creamier: Want an extra-luxe texture? Add a tablespoon of tahini or almond butter when you blend. Game changer.
• Stock matters: Homemade or good-quality store-bought stock will make this taste richer. But honestly, even plain water works because the veggies are doing the heavy lifting here.

If you’re new to working with winter squash, The Kitchn has a super helpful guide on how to peel and cut butternut squash that takes the intimidation factor way down.

Quick Fixes for Butternut Squash Sweet Potato Soup

Even the easiest soups can throw you a curveball. Here’s how to rescue yours:

Too thick? Just whisk in more stock or water, a little at a time, until you hit your perfect consistency.

Too thin? Let it simmer uncovered for 10-15 minutes to reduce, or blend in a cooked potato to thicken it naturally.

Not flavorful enough? This usually means it needs more salt. Add it gradually and taste as you go. A squeeze of lime juice can also brighten everything up.

Too sweet? Balance it with a splash of apple cider vinegar or lemon juice, or bump up the cumin and chili.

Grainy texture? Blend it longer. A truly smooth soup takes a good 2-3 minutes of blending.

Variations & Adaptations

The beauty of this Best Butternut Squash Soup is how adaptable it is. Here are some fun ways to switch it up:

Spice lover’s version: Double the chili flakes, add a diced jalapeño when cooking, or finish with a drizzle of sriracha.

Extra protein: Stir in cooked white beans or chickpeas for a heartier meal.

Different milk: Swap coconut milk for cashew cream or even regular cream if you’re not dairy-free.

Curry vibes: Replace the cumin and cinnamon with curry powder for a totally different (but equally delicious) direction.

Seasonal twist: In summer, sub in carrots and regular potatoes. In winter, add parsnips for extra earthiness.

Toppings bar: Set out toasted pumpkin seeds, crispy chickpeas, croutons, fresh herbs, and a good drizzle of olive oil so everyone can customize their bowl.

Serving, Storage & Reheating

This Easy Autumn Soup Recipe is basically made for meal prep and cozy nights in.

Serving: Ladle into bowls and get creative with toppings. I love a swirl of coconut milk, some fresh coriander, and a sprinkle of toasted pumpkin seeds.

Serve with crusty bread or a simple side salad. It also pairs beautifully with my Simple Crockpot Chicken Pot Pie for a full comfort-food spread.

Storage: Let the soup cool completely, then transfer to airtight containers. It’ll keep in the fridge for 4-5 days, and honestly gets even better as the flavors meld.

Freezing: This soup freezes like a dream. Portion it into freezer-safe containers or bags, leave a little headspace for expansion, and freeze for up to 3 months. Thaw overnight in the fridge.

Reheating: Warm it gently on the stove over medium heat, stirring occasionally. You might need to whisk in a splash of stock or water since it thickens as it sits. Microwave works too — just heat in 1-minute intervals, stirring between.

No-Waste Kitchen Magic

Let’s make the most of every bit:

Save those seeds: Scoop out the butternut squash seeds, rinse them, toss with olive oil and salt, and roast at 180°C for 15-20 minutes. Crunchy, delicious soup topping right there.

Veggie scraps = stock: Save your onion skins, garlic peels, and any veggie trimmings in a freezer bag. When it’s full, simmer everything for homemade stock.

Day-old soup: Blend leftover soup with a bit more coconut milk to make a sauce for pasta or drizzle over roasted veggies.

Use the skins: If your butternut squash and sweet potatoes are organic, you can leave some of the skin on — it adds nutrients and fiber, plus saves you peeling time.

FAQs

Can I make this Butternut Squash Sweet Potato Soup ahead of time? Absolutely! In fact, it’s even better the next day. Make it up to 3 days ahead and just reheat when you’re ready to serve.

Can I freeze this soup? Yes! This soup freezes beautifully for up to 3 months. Thaw in the fridge overnight and reheat on the stovetop.

Do I have to roast the vegetables first? Nope! Roasting adds a deeper, caramelized flavor, but if you’re short on time, just cook everything directly in the pot. Both versions are delicious.

Can I use light coconut milk instead of full-fat? You can, but full-fat gives you that silky, creamy texture that makes this soup so luxurious. Light coconut milk will work in a pinch, but it won’t be quite as rich.

What can I substitute for butternut squash? Any winter squash works great — try kabocha, acorn, or even pumpkin. You could also use all sweet potatoes and skip the squash entirely.

Is this soup spicy? Not really — it’s more warm and cozy than spicy. The chili powder and flakes add depth without much heat. If you want it spicier, definitely add more!

How do I know when the vegetables are done cooking? They should be completely tender when pierced with a knife — no resistance at all. This ensures the smoothest possible soup.

Wrapping It Up

So there you go — a Butternut Squash Sweet Potato Soup that feels fancy but is secretly easy, tastes like a warm hug, and works for pretty much any dietary need.

Whether you’re meal-prepping for the week or just craving something cozy on a chilly evening, this soup has your back.

I’d love to hear how yours turns out! Drop a comment below, share your favorite toppings, or tag me if you post it on social. And if you’re as obsessed with butternut squash as I am, check out The Best Butternut Squash Soup and Gordon Ramsay Butternut Squash Soup Recipe for even more autumn inspiration.

I’m Linda Sandra — a Charleston home chef and comfort-food daydreamer. Around here, cooking’s not about perfection — it’s about cozy vibes, creative twists, and food that feels like love.