Slow Cooker Pumpkin Soup with Red Curry Paste

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Slow Cooker Pumpkin Soup is a hands-off, cozy, satisfying recipe I love letting simmer on a chilly fall day. Silky smooth and creamy, it fills my kitchen with comforting fall aromas of sweet cinnamon and earthy pumpkin. It tastes like I spent hours in the kitchen while the slow cooker does most of the work.

Autumn isn’t complete without pumpkin recipes! I like to serve this soul-warming soup with crusty bread, a swirl of cream, crunchy pumpkin seeds, and fresh herbs; brown butter sage is my favorite. Also on repeat are my favorites: Sweet Potato Bread, Pecan Pie Bars, and Creamy Mashed Sweet Potatoes.

Why you will love this recipe
What you will need
How to prepare
Expert tip
Recipe variations and add-ins:
Serving suggestions:
How to store leftovers:
Frequently asked questions
More delicious soups:

With the pumpkin season in full swing, this Slow Cooker Pumpkin Soup is a must-try! Warm spices like nutmeg and cinnamon complement the rich soup and bring the fall flavors together. At the same time, the aromatics and curry paste add a savory note to balance the sweetness. I like adding a bit of almond or peanut butter to it for a nuttier flavor.

This recipe is simple, easy to follow, and adaptable. You can easily make it vegan or gluten-free, and it’s perfect for the holiday season or a cold fall day. Also, it requires very little prep time, and leftovers taste even better the next day. Let me give you some advice: make a double batch and freeze some for those days when pumpkin is not in season anymore.

Why you will love this recipe

Set it and forget it: With this recipe, I just put everything in the slow cooker and let it do the work while I enjoy my day. When I come back, all I have to do is mash the pumpkin to my liking and serve.
Deep pumpkin flavor: Letting it simmer all day creates a deep, rich pumpkin flavor you can’t get with regular pumpkin soup you make in just a few minutes on the stove. It also has time to absorb the ginger, nutmeg, cinnamon, garlic, and onion.
Easy cleanup: Since I make it all in one pot, I don’t have to worry about a sink full of dishes.
Perfect for meal prep: I can store leftovers in the fridge for days, and it reheats easily for quick lunches or dinners. I can even freeze it in quart-sized freezer bags to save serving-sized portions for several months. However, freeze it before adding cream.

What you will need

Produce: Diced pumpkin breaks down and softens during the long cooking time, letting the flavors spread through the soup while the other ingredients absorb into the pumpkin. Grated ginger adds zesty warmth to cut through the pumpkin’s heaviness. Minced garlic distributes the savory flavor evenly and mellows the garlic’s sharpness during the long cooking period. Diced sweet onion provides natural sugar and rich depth of flavor.
Wet ingredients: Olive oil adds texture and rich flavor to the broth. Red curry paste gives the broth deep, complex flavors of red chilies, shallots, lime, cumin, ginger, garlic, coriander, lemongrass, and cilantro without any chopping. Low-sodium vegetable broth provides a savory base that complements the pumpkin’s earthiness without extra salt. Add heavy cream at the end for a silky, luxurious mouthfeel and rich taste.
Seasonings: Besides salt and pepper, I also add ground cinnamon to balance the sweetness with warm, earthy depth, nutmeg for cozy nuttiness, and cayenne pepper for a bit of heat.

How to prepare

Roast the pumpkin: I like to roast my pumpkin, but that is optional.

Cook the soup: First, add all ingredients except the heavy cream to the slow cooker and cook on LOW for 7 to 8 hours or HIGH for 4 to 5 hours.

Add cream and mash: During the last 30 minutes, I add the heavy cream and mash the pumpkin with a potato masher.

Cream the soup: Afterward, I add salt and pepper to taste and use an immersion blender to cream the soup as much as needed.

Garnish and serve: Finally, I serve the soup garnished with pepitas, cilantro, and extra cream.

Crockpot soup made with pumpkin puree and heavy cream in a bowl

Expert tip

Roasting the pumpkin

I like to roast my pumpkin first, but this is optional. It is so easy, and it concentrates the natural sweetness while caramelizing the edges and skin for wonderful depth of flavor. It also gives it a smoother texture and helps remove those stringy pieces. Another benefit is that it retains the vitamins that may get lost as the pumpkin cooks in the broth. To roast, slice it into pieces and bake it for about 45 minutes at 350 degrees F. For details and expert tips, check out my easy pumpkin-roasting recipe on my blog.

More tips to consider:

Be sure to get the right kind of pumpkin. The best kind is sugar pumpkins, also known as pie pumpkins. Don’t use large carving pumpkins. They are stringy and watery, with no flavor.
For a shortcut, use canned pumpkin puree instead of fresh pumpkin. Then skip the pumpkin-mashing step, but still use the immersion blender to cream it.
If you use canned pumpkin, make sure it is 100% pumpkin, not pumpkin pie filling, which is full of sugar and other sweet ingredients.
For extra rich flavor, sauté the ginger, onions, and garlic before adding them to the slow cooker.
For a sweeter soup, add maple syrup or honey to keep it natural.

Recipe variations and add-ins:

Other veggies: When I have time, I like to add other veggies like carrots, celery, and bell peppers for more flavor and color.
Add fruit: Chopped or dried fruit is another great addition, such as apples, cranberries, pears, citrus, pomegranate, and apricots.
Bacon: Of course, bacon goes great with anything. I sometimes add some crumbled bacon to mine for a savory, salty taste.
Cheese: Any cheese sprinkled on top would work, such as cheddar, parmesan, gouda, or Swiss.
Pumpkin seeds: For crunch, sprinkle roasted pumpkin seeds on top. My kids love these!

Creamy pumpkin soup topped with roasted pumpkin seeds and chopped parsley

Serving suggestions:

I like to serve my soup with croutons, a basket of bread, and a garden salad made with iceberg lettuce, Roma tomatoes, and cheddar cheese. My favorite bread to have with this is Amish potato dinner rolls because they are so soft and have a hint of sweetness. They are perfect for dipping to soak up the rich, sweet flavor of the pumpkin soup or for eating with butter. My kids love it when I serve this soup in my bread bowls. They like to tear off chunks and dip them into the soup as they eat, and I like that there are fewer dishes to wash!

When I serve this soup as a side dish, I usually pair it with some kind of roast, such as my Instant Pot pot roast, which cooks in less than 2 hours. It turns out juicy and tender, with potatoes, carrots, and mushrooms that never get soggy. For something lighter, try my Instant Pot French dip sandwiches with sweet onions and herbs. For dessert, pumpkin bundt cake, topped with sweet cinnamon glaze and chopped pecans.

How to store leftovers:

Refrigerate: Store leftovers in a sealed container in the fridge for 3 to 4 days.
Freezing: Freeze leftover soup in quart-sized freezer bags for several months. However, freeze it before adding the cream, or it may separate.
Defrost: Before reheating, I thaw my frozen leftovers in the refrigerator overnight.
Reheating: I reheat leftovers in a saucepan over medium-low heat for several minutes, stirring frequently.

Frequently asked questions

Why is my slow cooker pumpkin soup lumpy?

Adding the cream too soon or using cold cream can cause this. Also, using milk or light cream can cause it to separate and become lumpy. Use heavy cream with at least 36% milkfat, and make sure it’s at room temperature before adding it to the soup. And don’t add it until the last 30 minutes of cooking, or the cream will curdle. If this happens, use an immersion blender to cream it until smooth, or strain out the lumps.

Can I use butternut squash for slow cooker pumpkin soup?

Actually, butternut squash will work wonderfully in this slow cooker pumpkin soup. It has a very similar taste and texture with the same rich, orange color. The substitution ratio is equal so that you can use the same amount of squash. It is even a bit less watery and slightly sweeter than pumpkin. I would still roast it first, but that’s optional. Take soy sauce, so you need to use that, too.

How long can I keep pumpkin soup in the slow cooker on warm?

This depends on your slow cooker’s temperature setting. Slow cookers do not all keep the same temperatures on the warm setting, so it is dangerous to rely on a general guideline. I would not recommend keeping food out longer than 2 hours on the warm setting. Some people leave their soup in the slow cooker on warm for up to 4 hours while their guests eat, but the average food temperature can get close to the USDA danger zone, which is 140 degrees F.

What can I use instead of an immersion blender?

If you don’t have an immersion blender, don’t worry; you can cream your soup another way. If you don’t mind, use a whisk or an eggbeater. You could also use a hand mixer. But be sure to cover the slow cooker to keep hot soup splashes from getting everywhere. Another option is to pour the soup into a blender or food processor and cream it. Then, pour it into the bowls from there—no need to put it back into the slow cooker.

More delicious soups:

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