Equipment
Ingredients
Produce & Aromatics
- 800 g butternut squash, peeled, seeded, and cubed
- 1 onion, diced
- 4 garlic, minced
- 2 g fresh thyme, leaves picked and chopped
Chestnuts & Liquids
- 200 g cooked chestnuts, peeled and roughly chopped
- 800 ml vegetable broth
- 60 ml bourbon
- 100 ml heavy cream
Fats & Seasonings
- 30 ml olive oil
- 30 g unsalted butter
- 1 g ground nutmeg
- 5 g kosher salt
- 2 g black pepper
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 487 kcal
- Protein
- 6 g
- Carbohydrates
- 58 g
- Fat
- 24 g
- Fiber
- 8 g
- Sugar
- 13 g
- Sodium
- 1110 mg
- Saturated Fat
- 11 g
- Trans Fat
- 0 g
- Monounsaturated Fat
- 10 g
- Polyunsaturated Fat
- 2 g
- Cholesterol
- 44 mg
- Potassium
- 1143 mg
- Calcium
- 154 mg
- Iron
- 2.4 mg
- Magnesium
- 95 mg
- Phosphorus
- 160 mg
- Zinc
- 0.8 mg
- Vitamin A
- 1248 mcg
- Vitamin C
- 60 mg
- Vitamin D
- 0.4 mcg
- Vitamin E
- 4.6 mg
- Vitamin K
- 13 mcg
- Vitamin B6
- 0.7 mg
- Vitamin B12
- 0.1 mcg
- Thiamin
- 0.39 mg
- Riboflavin
- 0.21 mg
- Niacin
- 3.4 mg
- Folate
- 98 mcg
- Water
- 450 g
- Alcohol
- 5 g
Sources: USDA FoodData Central
Method
Preheat your oven to 200°C/400°F.
Place the cubed butternut squash on a baking sheet. Drizzle with olive oil and toss with half of the salt and black pepper until evenly coated.
Roast the squash in the preheated oven for 30 minutes, or until deeply golden and fork-tender.
In a large pot, melt the butter over medium heat. Add the diced onion and minced garlic, cooking until translucent and fragrant.
Pour the bourbon into the pot to deglaze, using a wooden spoon to scrape up any browned bits from the bottom. Allow the liquid to reduce by half to cook off the harsh alcohol notes.
Add the roasted butternut squash, cooked chestnuts, fresh thyme, ground nutmeg, and vegetable broth to the large pot. Stir to combine.
Bring the mixture to a gentle bubble, then reduce the heat to low. Cover and simmer for 15 minutes to allow the flavors to marry.
Carefully transfer the soup to a blender, working in batches if necessary, and process until completely smooth and velvety.
Return the pureed soup to the pot over low heat. Stir in the heavy cream and warm gently for 2 minutes without letting it boil. Taste and adjust seasoning with additional salt and pepper if needed.
Chef's Notes
- Using a high-quality, aged bourbon introduces notes of vanilla and oak that pair beautifully with the natural caramelization of the roasted squash.
- Pre-packaged vacuum-sealed roasted chestnuts save significant prep time while maintaining excellent flavor and texture, making them ideal for pureed soups.
- For the absolute smoothest texture, pass the blended soup through a fine-mesh chinois before stirring in the heavy cream.
- To elevate the presentation, garnish with a drizzle of brown butter, a splash of cream, and some reserved crumbled chestnuts just before serving.
Storage
Refrigerator: 4 days — Store in an airtight container. The flavors will deepen overnight, making it excellent for leftovers.
Freezer: 3 months — Freeze without the heavy cream if possible, stirring cream in upon reheating to prevent splitting.
Reheating: Reheat gently on the stovetop over medium-low heat, stirring frequently. Do not bring to a rolling boil.
Troubleshooting
Soup is too thick and resembles a puree rather than a liquid
Cause: Chestnuts absorbed more liquid than expected, or excessive evaporation occurred during simmering
Fix: Whisk in additional warm vegetable broth or hot water, 50ml at a time, until the desired consistency is reached
Prevention: Keep the pot fully covered during the simmer phase
Soup tastes too strongly of alcohol
Cause: The bourbon was not reduced sufficiently during the deglazing step
Fix: Simmer the finished soup uncovered for an additional 10 minutes to help evaporate the remaining alcohol
Prevention: Ensure the bourbon reduces by at least half and smells mellow rather than sharp before adding broth
Cultural Context
Chestnuts and squash are classic autumn staples in North American cuisine, heavily utilized by Indigenous peoples and early settlers for their long storage life and high nutritional value. The addition of bourbon reflects a Southern American culinary tradition of using local spirits to build complex, warming flavor profiles in savory comfort dishes.
