Slow Cooker Brown Sugar Butternut Squash

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Slow Cooker Brown Sugar Butternut Squash is the easiest way to make creamy, delicious mashed butternut squash without roasting or boiling.

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Slow Cooker Butternut Squash is an easy, delicious, and healthy side dish (no roasting or boiling needed) that you can make for any holiday meal.

Mashed butternut squash is constant on our holiday table. It's something I have been watching my mother make for years and after thinking I didn't like it growing up, now it's a dish I look forward to and that we all love. She normally roasts her squash with a touch of butter, brown sugar, and cinnamon and then mashes it until it is super creamy and delicious.

And while this method definitely works, I have come to rely on my slow cooker to do the hard work for me. Not only does this free up some oven space, which I desperately need during any holiday meal, it also means I can basically dump everything into the slow cooker and not worry about it. You can even make it a few days in advance.

How to Cut a Butternut Squash

Before we get into the recipe, I want to share a few tricks for peeling and cutting butternut squash. Butternut squash is one of those vegetables that can feel not only intimidating but dangerous to peel and cut. I can't tell you how many times I have fought with a butternut squash and almost lost fingers before learning this trick.

To loosen up the skin and make the squash both easier to peel and easier to cut, all you are going to do is pop it in the microwave for a few minutes first. Start by piercing it all over with a knife or fork and then microwave it for 2-3 minutes. This loosens up the skin. Then you can easily peel the squash and cut it. It really works and there is a video below showing you just what to do.

Recipe Ideas for Crockpot Butternut Squash

Now on to the recipe. To make the squash really sing, I like to add butter, brown sugar, and cinnamon. These are the holiday flavors I grew up with and it just doesn't feel the same without them. The butter adds richness, the sugar adds sweetness, and the cinnamon brings everything together and reminds me of the holidays.

Luckily you don't need very much so this recipe is still on the healthy side and you could always leave it out, depending on your needs. Everything cooks together in the slow cooker, no boiling or roasting, and that's it. Mash it with a potato masher or immersion blender and they're ready to go.

However, there are tons of other flavor combinations you could use for this slow cooker squash as well.

  • Butter and sage: Leave out the brown sugar and add in some dried or fresh sage for a classic holiday combination. You could even brown the butter to add an extra layer of nutty flavor.
  • Garlic butter: Add 3-4 minced garlic cloves to the recipe. This works with or without the brown sugar.
  • Coconut and cinnamon: Swap in coconut oil for the butter and consider adding a touch of nutmeg in addition to the cinnamon. Make sure to choose an unrefined coconut oil so you get the coconut flavor.
  • Maple syrup and cayenne: Swap in pure maple syrup for the brown sugar and add a touch of cayenne for a sweet and spicy combo.
  • Goat cheese and rosemary: For something savory, add in some crumbled goat cheese and either fresh or dried rosemary.

Slow Cooker Butternut Squash in a wooden bowl with walnuts and a spoon.

Tips for Making Slow Cooker Butternut Squash

  • Depending on how much time you have, you can start with a whole butternut squash or you can buy pre-cut squash if you are in a rush. For a whole butternut squash, make sure to watch the video below to learn a simple kitchen hack that makes peeling and cutting the squash so much easier.
  • Butter, brown sugar, and cinnamon are what reminds me of home when it comes to holiday butternut squash. However this dish can be made without the butter or brown sugar for a lighter and healthier version. To make sure the resulting mash is creamy, you may want to add some broth, milk, cream, or coconut milk once the squash finishes cooking. Some people like to add nutmeg to the dish as well.
  • This recipe also works great with thickly sliced carrots. It's another holiday favorite around here.
  • This dish can be made 2-3 days in advance and stored in the fridge.

Can I cook a whole butternut squash in the slow cooker?

Another option for cooking butternut squash in the slow cooker is to add the entire squash right to the slow cooker. Start by rinsing and cleaning the outside of the butternut squash. Add it right into the bottom of the slow cooker. You don't need any liquid. Cover and cook for 6-8 hours on low or 4-5 hours on high. Test the squash for doneness by gently pressing the side. It should feel soft to the touch. Let it cool for at least ten minutes. Then carefully cut it in half and scoop out the seeds using a spoon. 

How long does butternut squash take in the crockpot?

Chopped butternut squash will take about 4 hours in the crockpot on low. A whole butternut squash will take 6-8 hours on low or 4-5 hours on high heat.

Looking for more butternut squash recipes?

Here are some tools and products I used to prepare this dish:

  • Slow Cooker: There are so many different slow cookers on the market but I personally use this one that allows me to brown, sear, or saute in the same pan. Plus I find the cooking temperature to be really even and consistent.
  • Mashing: I love this potato masher and use it constantly for mashed potatoes, cauliflower, and squash. For a creamier consistency, you could also use an immersion blender.
The Recipe
Slow cooker butternut squash served in a wooden bowl.

Slow Cooker Brown Sugar Butternut Squash

COOK TIME: 4 Hours
TOTAL TIME: 4 Hours, 15 Min
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  • 4 lbs butternut squash, peeled and chopped (4-5 lbs)
  • 2 tbsp butter, cut into smaller pieces
  • 1/4 cup brown sugar (or maple syrup)
  • 1 tsp. cinnamon
  • salt and pepper

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Add all the ingredients to the slow cooker and mix. Cook on low for 4 hours.


Using a potato masher or immersion blender, mash until smooth and creamy.


Cook the butternut squash whole: Add only the squash to the slow cooker. Cook on low for 6-8 hours or high for 4-5 hours. Once it is tender to the touch, let it cool for at least 10 minutes. Carefully cut in half and remove the seeds. Scoop out the squash with a spoon Add the butter, cinnamon, salt, and pepper.

Nutritional Facts
Serving Size: 1/2 cup
Amount Per Serving
Calories 154
Calories from Fat 28
% Daily Value *
Total Fat 3g
Saturated Fat 2g
Monounsaturated Fat 0g
Polyunsaturated Fat 0g
Cholesterol 8mg
Sodium 11mg
Total Carbohydrate 34g
Dietary Fiber 5g
Sugars 12g
Protein 2g

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Nutritional Values provided are estimates only and may vary based on the preparation method.

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About the author Meet Kristen McCaffrey
Hi, I’m the cookbook author, recipe developer, and food enthusiast behind Slender Kitchen. I am obsessed with making healthy food that is easy to prepare and absolutely delicious. Meal planning is my secret weapon and I hope I can make meal time easier for you with our tried and tested recipes and foolproof meal plans. Learn More
† We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
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