One of my recent CSA deliveries included a red Kuri Squash. The name inspired me to create a velvety squash soup with red curry and meaty chestnuts. I started with my own broth, made from a mirepoix with oyster mushrooms and simmered with kaffir lime leaves and ginger. (Note that the mirepoix & mushrooms method is a great way to make vegetarian soup broth in general.) The soup itself has the consistency of a vichyssoise or other creamy soup, with chestnuts adding some substance and is sort of Thai-French-American fusion… I recommend serving each bowl with a bit of fresh cilantro.
Roasted chestnuts that are pre-shelled are often available at Japanese or Chinese grocery stores (like Nijiya or 99 Ranch) in vacuum sealed packages. They’re pretty convenient and tasty! One forenote…I’m not a big fan of Trader Joe’s red curry sauce (I didn’t have a chance to try it before this recipe), so if you make this I’d recommend using Thai red curry paste that comes in a tub.
The only reason I used the Trader Joe’s brand is because normally Thai curry paste is not vegetarian because it includes shrimp paste. I now regret that decision…it would’ve been better with the sacrificed shrimp. If I made it again, I might also add some sprigs of lemongrass to the both while simmering.
Curry Kuri Squash Soup with Chestnuts
Ingredients
- 1 Kuri Squash (or other winter squash)
- 1/2 yellow onion
- 2 small carrots
- 2 stalks celery
- 1 cup oyster mushrooms (or other mushrooms)
- 2 tbsp butter
- 2 cloves of garlic
- 2 kaffir lime leaves
- 1 large coin fresh ginger
- 3 cups water
- 2 tbsp soy sauce
- 1 can light coconut milk
- 1/2 bottle of Trader Joe’s red curry sauce (or a few tbsp red curry paste instead)
- 1+ tsp cayenne pepper
- 2 tbsp fresh grated ginger
- 2 cups chopped roasted, shelled chestnuts
- fresh cilantro for garnish
Cut the squash in half and roast it in a 350 degree oven for about an hour, or until easily poked with a fork and soft.

Dice celery, carrots, and onions into about 1/4″ cubes.
Chop the mushrooms roughly and add them to a pot with the 2 tbsp of butter. Mix it all up well. Sautee them until the mushrooms are nicely browned.
Add the mirepoix and 2 cloves of garlic to the pot and mix it up so it gets coated with the butter. Continue sauteeing until the onions start becoming browned and caramelized.
Add the water and soy sauce and mix well. Let it simmer for about 15 minutes. If you just want a vegetarian stock, once the broth tastes flavorful enough to you, simply strain out the liquid and you have a very good vegetable broth. For the squash soup, continue on…

Add the coconut milk, kaffir lime leaves, and ginger coins. Mix well and simmer for 15 minutes. (I put a couple of tomatoes in with the broth just because…I don’t think it added anything special though. Not sure why I added it. But that explains that tomato you see floating there that isn’t included in the ingredients list…)
Strain off the liquid and dispose of the mirepoix/etc.
Time to get back to the squash…remove the seeds and scoop out the meat.

Add the squash to a blender along with the curry sauce and a bit of the broth you just strained. Blend it up until smooth.
Return the broth to the pot and add the squash mixture. Mix it all up well and let it simmer. Add some cayenne powder.
Roughly chop up the chestnuts. Add them to the soup.
Add the 2 tbsp of grated ginger. Simmer the soup on a low heat for quite a while, stirring intermittently, until reduced as much as you’d like.
Serve with fresh cilantro, perhaps a wedge of lime.

























