Roasted Crown Prince Squash Soup
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Roasted Crown Prince Squash Soup is home comfort in a bowl. Made with gentle spices and fresh stock, this rich autumnal soup is deeply flavourful and velvety smooth. Perfect for batch cooking.

A version of this squash soup has existed in our house for years, some years it’s been a pumpkin soup and other years it’s been a butternut squash soup. This year though the honour goes to a crown prince squash, by way of my in-law’s allotment. And dare I say it, this is my favourite version of this spiced roasted squash soup yet thanks to its sweetly nutty flavour. It has a denser texture than butternut squash and it blends into a really creamy texture.
Since we are a large family we were given the largest of the crown princes they grew this year and although at first I was intimidated, I have managed to stretch this squash into several cosy hearty meals.
The first recipe off the pass though was our family favourite soup, as requested by my 8 year old. He is a very picky eater and he often struggles enjoying proper dinners. So if he ever suggests a meal, I am throwing on my apron and getting that oven pre-heated before he’s even finished the request.
This soup is everything to celebrate about Autumn. Rich and cosy with an underpinning of warming spice. To imbue the soup with as much intensely squashy flavour as possible we roast it up first before adding into the soup. If you add the squash straight into hot water or stock, much like other squashes or even sweet potato, the vegetable basically turns to mushy water. The pre-roasting captures the flavour and texture whilst also lending a slightly caramelised note to the proceedings.
Then after that we cook down a collection of carrots, onion, celery and leek then pump the soup full of cumin, coriander, cinnamon, nutmeg and cloves. A pinch of chilli can be added in for depth more than piquancy (I often skip it these days due to the children). If you like your soups super spicy then do add in fresh chillies as well, although that was not what we were looking for here.

Why You’ll Love This Roasted Crown Prince Squash Soup
- Richly sweet nutty flavour, amplified by roasting.
- Dense flesh which roasts and blends into a beautifully creamy consistency.
- Warming spices make this a perfect autumn soup.
- The soup is naturally gluten-free. Dairy is only used in the optional crème fraiche garnish. I recommend using fresh beef stock but you can switch for vegetable stock if you need a vegetarian/vegan recipe.
- Perfect for batch cooking.
- Easy to store and freeze leftovers.
Ingredients Needed

Crown prince squash. You need about 2kg of squash for this recipe – this is the weight unpeeled with the seeds. If your squash is larger then cut it to make 2kg, saving the rest for another use. When you remove the skin and seeds the weight will reduce. You need about 1.2kg of the prepared squash.
Aromatics. We add a fair bit of extra veg to create a depth of flavour. We use a carrot, onion, celery, a leek and garlic.
Seasonings and spices. Obviously salt and pepper but we also use some warming spices which are not overpowering but add gentle flavour. We use cumin, ground coriander, ground cinnamon and a pinch of nutmeg and cloves.
Chilli flakes. These are optional. I don’t use them when I’m making this soup for my children (which is most of the time these days) and the soup is no worse for it. But if you like a bit of heat then this is just a gentle nod. Add more if you like.
Fresh stock. We use a lot of stock in this recipe and I urge you to use homemade chicken stock if you have some to hand. If I happen to have run out then I will turn to beef bone broth concentrate which I always keep in the fridge for cooking emergencies (and it’s a great hot drink). Both of these options give the soup so much flavour. Only use a stock cube in a total emergency. If you need the recipe to be vegan / vegetarian then you can use vegetable stock.
Garnish. A dollop of crème fraiche and some chopped parsley will pretty up the soup. But it’s optional.

How To Prepare Crown Prince Squash
Preparing the squash is a cumbersome affair. Make sure to use a large chef’s knife and cut from the tip of the knife in a slicing action down towards the handle which gives you good leverage in getting through the tough skin and flesh.
Cut the squash into quarters, scoop and scrape out the seeds with a spoon, then slice off the skin of the squash with the chef’s knife.
How To Make Homemade Crown Prince Squash Soup
For full recipe instructions go to the recipe card at the end of this post.
Peel and de-seed the squash and dice into 1 inch pieces. Toss with olive oil and seasoning and roast for 30-35 minutes.

Heat a large stock pot with olive oil then add carrot, onion, celery and leek with salt. Cook for about 10 minutes then add the garlic, all the spices, and chilli if using, and stir to coat, cooking for a further 2-3 minutes.

Tip the roasted squash in, followed by the stock and bring up to the gentle boil. Then turn the heat down to simmer for 30 minutes.

Remove the soup from the heat and blend it together until smooth. I used a stand blender for an ultra smooth result and completed the task in two batches.

Once the soup is smooth then pour back into the cleaned cooking pot. Check the consistency, if you feel it is too thick then whisk in some just-boiled water (up to about 200g maybe). Bring the soup back up to a gentle simmer if you want to serve it piping hot.

Tips & Troubleshooting
Use a large roasting tin for roasting the squash as you don’t want it overcrowded – otherwise it will steam rather than roast.
Caramelising the squash adds to the flavour so make sure it is turning a lovely golden brown at the edges before removing it from the oven. If it hasn’t yet then just tuck it back into the oven for a little longer. The larger you cut the squash the longer it will take to roast.
The saltiness of your soup depends on how salty your stock is (some fresh stock is unsalted – depending on the brand or if it is homemade), so taste for seasoning after blending the soup.
You can use an immersion blender but the smoothest and creamiest soup can be achieved by a very good stand blender. You will probably need to blend the soup in batches.
If you find the finished soup a little thick then thin it down with a little extra water (rather than stock). If I’m serving the soup in bowls with crusty bread or toasties then I like it nice and thick. However, if it’s a little more refined for guests then I will sometimes add up to 200g just boiled water. But pour it in gradually until you get to the consistency you like. If I want to serve the soup in mugs for drinking then I often add even more water to thin it out.
If the soup is too thin then boil down until you reach your preferred consistency.

Serving Suggestions
If we’re turning this soup into a main meal or you’re serving it to guests then by all means dress it up with a topping of crème fraiche and parsley.
It doesn’t need the adornments if you’re serving it family style, although don’t forget to serve it alongside a stack of cheese toasties for dipping.
Very good buttered crusty bread is a rustic and welcome pairing.
If you’re looking for some gluten-free accompaniments these Homemade Gluten-Free Cheese Scones work amazingly well, or these Easy No Yeast Bread Rolls.
I have served this soup for guests with a handful of cheese straws perched on top of the bowls. I did this once for a festive appetizer and it was a treat.
Otherwise try topping the soup with pumpkin seeds, croutons, fried chorizo or bacon or even crumbled feta or goat’s cheese.

FAQs
To make this recipe dairy-free you just need to omit the crème fraiche garnish. If you need to go a step further to make it vegan then you should make sure to use vegetable stock rather than chicken or beef.
You can buy crown prince squash already cut which makes life easier so by all means give it a go. However, you will achieve the best flavour from a whole fresh squash which you cut yourself.
Freeze any leftover soup in individual portions in airtight containers. (up to 3 months) Thaw overnight in the refrigerator then re-heat on the stove for 10 minutes, whisking until piping hot. You can add a little more water to thin it out if needed.
The cooked soup will store in the refrigerator for up to 5 days, stored in an airtight container.
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Roasted Crown Prince Squash Soup
Ingredients
- 2 kg crown prince squash - unpeeled (about 1.2kg flesh)
- ¾ teaspoon salt - separated
- ½ teaspoon ground pepper - separated
- 3 tablespoons olive oil - separated
- 1 carrot - peeled and diced
- 1 onion - peeled and diced
- 1 celery - diced
- 1 leek - diced
- 2 cloves garlic - crushed
- Pinch dried chilli flakes - optional
- 1 teaspoon cumin
- ½ teaspoon ground coriander
- ¼ teaspoon ground cinnamon
- pinch of nutmeg
- pinch of cloves
- 1½ litres fresh chicken, beef or vegetable stock
- Crème fraiche and parsley to serve
Instructions
- Pre-heat the oven to 200°C / 180°C fan assisted / gas mark 6 / 400°F.
- Prepare the squash by cutting into quarters with a sharp chef’s knife. Scrape out the seeds using a spoon then cut off the tough skin with the chef’s knife. Dice the squash flesh into 1 inch pieces. You need about 1.2kg prepared squash.
- Pour 2 tablespoons of olive oil into a large roasting tray and then tip the pumpkin in, coating with the oil ½ teaspoon salt and pepper.
- Place in the oven and roast for about 30-35 minutes until the squash is cooked all the way through and just starting to caramelise at the edges.
- Remove from the oven and set aside.
- Meanwhile heat the other tablespoon of olive oil in a large stock pot on a gentle heat. Add the carrot, onion, celery and leek with ¼ teaspoon salt. Cook for about 10 minutes until the vegetables are just turning transparent.
- Add the garlic, all the spices, and chilli if using, and stir to coat, cooking for a further 2-3 minutes.
- Tip the roasted squash in, followed by the stock and bring up to the gentle boil. Then turn the heat down to simmer for 30 minutes.
- Remove the soup from the heat and blend it together until smooth. I used a stand blender for an ultra smooth result and completed the task in two batches.
- Once the soup is smooth then pour back into the cleaned cooking pot. Check the consistency, if you feel it is too thick then whisk in some just-boiled water (up to about 200g maybe).
- Taste for seasoning, then bring the soup back up to a gentle simmer if you want to serve it piping hot.
- Serve in bowls with a swirl of crème fraiche and some snipped parsley or chives.
Notes
- Our whole crown prince squash was actually 4kg, I only used half of it for this soup then stored the rest in the refrigerator for other meals.
- You can swap for pumpkin, butternut or another kind of squash.
- If you are swapping for butternut squash then it might be about 2 large butternut squash.
- Store any leftovers in the fridge in an airtight container.
- Freeze any leftover soup in individual portions in airtight containers. (up to 3 months) Thaw overnight in the refrigerator then re-heat on the stove for 10 minutes, whisking until piping hot.


