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    Home » Garden To Table » Winter Squash » Kabocha

    Roasted Kabocha Squash Soup

    Published: Jan 2, 2021 · Modified: Dec 4, 2021 · Leave a Comment

    Jump to Recipe Print Recipe Save Recipe Saved!
    This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases.

    This creamy roasted kabocha squash soup is made with winter squash, warming spices, cauliflower, milk and Parmesan cheese.

    roasted kabocha squash soup in a Dutch oven

    Each fall I get ridiculously excited about winter squash.

    Almost without fail, I buy as many squash as possible as soon as possible.

    One of my favorite things about winter squash is that they have a long shelf life, especially if you’ve got a cool, dark place to store them.

    That means you can buy early and use them for months. It’s fabulous.

    This year, I made spaghetti squash gratin, spaghetti squash marinara and lots of salmon spaghetti squash bakes.

    We also enjoyed butternut squash risotto, butternut squash lasagna, butternut squash quiche and a butternut squash galette.

    I made acorn squash pasta sauce and delicata squash salad.

    You get the point. I love winter squash!

    And of course, I made sure to get some kabocha squash.

    This creamy kabocha squash soup is made with roasted winter squash, cauliflower, milk and cheese, and is a comforting, warming soup perfect for a chilly winter day.

    Want more winter squash ideas? Try making roasted spaghetti squash, Instant Pot spaghetti squash, vegan pumpkin soup, spicy butternut squash soup and roasted acorn squash slices.

    Kabocha Squash
    Kabocha Squash

    What is Kabocha Squash?

    Kabocha squash is also known as Japanese pumpkin.

    The flavor is like a cross between a pumpkin and a sweet potato.

    Can I Use a Different Squash Instead?

    For the closest swap, try using about two cups of canned pumpkin.

    You can also try using this Instant Pot pumpkin purée or roasted pumpkin purée.

    Or use this similar recipe for creamy pumpkin soup.

    How to Prepare Kabocha Squash

    Kabocha squash, like many winter squash, can be tough to slice through before cooking.

    Kabocha has a particularly tough skin, and cooking the squash for just a few minutes before cutting can make slicing through the squash much easier.

    Microwave the Squash

    The quickest way to soften a kabocha squash is to microwave it.

    Start by scoring the top with a knife. This will help release some steam while it cooks.

    Score the Squash with a Knife + Microwave
    Score the Squash with a Knife + Microwave

    Next, microwave the squash in 90-second bursts until it softens slightly. Now you can cut it in half more easily.

    Pre-Roast the Squash

    If you don’t use a microwave, another option is to place the whole squash in a hot oven.

    Cook it until it softens slightly, and then you can easily slice through the skin.

    Skip Pre-Cooking + Cut it Raw

    You can, of course, skip any pre-cooking and simply use a little extra force to cut through the kabocha squash.

    Do whatever works best for you.

    Halve + Remove Seeds

    Cut the squash in half.

    Use a spoon to scoop out both the seeds and the membrane.

    Cut Squash in Half + Scoop Out Seeds
    Cut Squash in Half + Scoop Out Seeds

    How to Make Roasted Kabocha Squash Soup

    Cut the squash into 8 or 9 large wedges.

    Stir together a little sea salt, smoked paprika and red chili flakes.

    Arrange the wedges flesh-side up on a baking sheet. Drizzle with oil and sprinkle some of the spice mixture over the squash.

    Cut Squash into Large Wedges
    Cut Squash into Large Wedges
    Season Squash + Arrange on Baking Sheet
    Season Squash + Arrange on Baking Sheet

    Use a second baking sheet to prepare some cauliflower and onion.

    Toss them in oil and the same spice mixture.

    Add Cauliflower + Onion to Baking Sheet
    Add Cauliflower + Onion to Baking Sheet

    Begin roasting the squash first. After about 15 minutes, add the cauliflower and onion.

    When all the veggies are tender, remove them from the oven.

    Let the squash cool slightly, and then remove the peel with a paring knife.

    Roast Squash + Remove Peel
    Roast Squash + Remove Peel
    Roast Cauliflower + Onion Until Tender
    Roast Cauliflower + Onion Until Tender

    Next, you’re going to blend the soup.

    If you have an immersion blender, you can add the veggies, milk and cheese to a soup pot. Blend the soup directly in the pot.

    Alternatively, add the veggies, milk and cheese to a blender basin. I use a Vitamix 7500.

    Be aware that this is a pretty thick soup, so your blender might struggle. If you need to, simply add extra liquid to thin the soup.

    Blend Veggies with Milk + Cheese
    Blend Veggies with Milk + Cheese

    Finally, warm the soup up in a soup pot.

    I recommend covering the pot with a lid to avoid splatters.

    Warm Soup in Pot
    Warm Soup in Pot

    Serve this soup with a Brie grilled cheese sandwich or a piece of crusty bread.

    roasted kabocha squash soup in a Dutch oven and bowls
    roasted kabocha squash soup in a Dutch oven
    Print Recipe Save Recipe Saved!
    5 from 1 vote

    Roasted Kabocha Squash Soup

    This creamy roasted kabocha squash soup is made with winter squash, warming spices, cauliflower, milk and Parmesan cheese.
    Author: Sarah Trenalone
    Prep Time10 mins
    Cook Time40 mins
    Total Time50 mins
    Course: Soup
    Cuisine: American
    Diet: Gluten Free
    Servings: 8 people (1 cup servings)
    Calories: 160kcal
    Freezer Friendly?
    No
    Will It Keep?
    3-4 Days
    Prevent your screen from going dark

    Equipment

    • blender (I use this one)
    • immersion blender, if not using blender with basin (I use this one)

    Ingredients

    • 1 kabocha squash (medium-sized) Rinse squash + pat dry before using
    • 2 tablespoon olive oil, divided
    • 2 teaspoons salt
    • 2 teaspoons smoked paprika
    • 1 teaspoon red chili flakes
    • ½ cauliflower head (medium-sized), broken into florets
    • 1 onion, peeled + cut into ~8 wedges
    • 2 ½ cups milk (2% or whole), plus more if desired Optionally, replace some of the milk with vegetable broth or beer (such as a lager)
    • 2 ounces Parmesan, freshly grated

    Instructions

    Prepare the Kabocha:

    • Option 1: Soften in the Microwave. Score the top of the squash with a knife. (Scoring the squash will help allow steam to release while microwaving.)
      Put the entire squash in the microwave and cook in 90 second bursts until the squash softens slightly. (Typically about 6 minutes total.)
      Option 2: Soften in the Oven. Roast the entire squash whole at 400°F for about 10 minutes to soften the squash.
      Option 3: Use your arm muscles. Skip the previous two steps and just use a little extra force to slice through the squash. Insert the tip of a chef's knife into the squash and slowly wiggle it back and forth until it begins to split apart, then proceed with the next step.
      Score the Squash with a Knife
    • Use a large chef's knife to cut the squash in half, and then use a spoon to scoop out the seeds and membrane.
    • Cut the squash into 8-10 large wedges.
      Cut Squash into Large Wedges

    Kabocha Soup:

    • Preheat oven to 400ºF.
      Mix together the salt, smoked paprika and red chili flakes in a small bowl.
      Arrange the kabocha squash flesh-side up on a baking sheet. Drizzle half the oil over the squash. Sprinkle half the spices on the squash.
      If the spices are not perfectly even on the squash, it's fine. You'll be blending the squash so it doesn't matter.
      Season Squash + Arrange on Baking Sheet
    • Arrange the cauliflower florets and onion on a separate baking sheet.  Drizzle with remaining olive oil, and then toss with remaining spices.
      Add Cauliflower + Onion to Baking Sheet
    • Add the squash to the oven and roast for 30 minutes.  After 15 minutes, add the cauliflower.  Roast until both trays of veggies are tender when pierced with a fork.
      Allow the squash to cool slightly, and then use a paring knife to remove the peel. Discard the peel.
      If small pieces of peel are left on the squash, it's fine. The peel is edible.
      Roast Squash + Remove Peel
    • Blender method: Add the squash, cauliflower, onion, milk and cheese to a blender basin and blend until creamy. Work in batches if your blender is too small. Note that you may need to add extra milk, depending on the size of the blender and strength of the blender motor.
      Immersion blender method: Add veggies, milk, and cheese to a soup pot.  Use an immersion blender and blend until creamy.  
      Note: Depending on the size of your vegetables, you may need to add more liquid to the soup.  If the soup is too thick, add extra milk. Optionally, you could add vegetable broth or beer to thin the soup.
      Blend Veggies with Milk + Cheese
    • Warm soup in the soup pot until heated through. (This soup is very thick. Add a lid to the soup pot to keep the soup from splattering on your stovetop.)
      Alternatively, heat on low in a slow cooker until warm, and keep slow cooker set to "warm" while serving guests at a party.
      Warm Soup in Pot

    Nutrition

    Calories: 160kcal (8%) | Carbohydrates: 17g (6%) | Protein: 7g (14%) | Fat: 8g (12%) | Saturated Fat: 3g (19%) | Cholesterol: 12mg (4%) | Sodium: 748mg (33%) | Potassium: 645mg (18%) | Fiber: 3g (13%) | Sugar: 8g (9%) | Vitamin A: 2037IU (41%) | Vitamin C: 32mg (39%) | Calcium: 213mg (21%) | Iron: 1mg (6%)
    Tried this recipe?Leave a comment and rating below!

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    About Sarah Trenalone

    Sarah is the primary creator at Champagne Tastes. She's a photographer, food writer and traveler, and is certified in Backcountry Kitchen and Backcountry Navigation from the Colorado Outward Bound School and Identifying Wild Plants from Backpacker.

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