Sweet potato soufflé is a deliciously light and fluffy side dish perfect for entertaining guests during the holidays. This simple recipe requires only a handful of basic ingredients and is easy to prepare. Gluten-free and easily made dairy-free, this sweet potato soufflé recipe is ideal for those with dietary restrictions and no dietary restrictions alike.
![plate of sweet potato souffle with a casserole dish of sweet potato souffle](https://img.ehowcdn.com/375/clsd/11/19/be70ee4e5c754716bc6534d4d0f2605c.jpg)
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Things You'll Need
5 sweet potatoes (about 5 cups cooked and mashed)
1 stick (1/2 cup) butter, melted
1 cup brown sugar
5 large eggs
1/2 cup half & half or heavy cream
2 tsp pure vanilla extract
2 tsp ground cinnamon
1/2 tsp ground nutmeg
1/2 tsp sea salt
Tip
Make recipe dairy-free by replacing the butter with vegan "butter" spread and the half & half for full-fat canned coconut milk.
Step 1
Place sweet potatoes in a large pot and cover with water. Cover and bring to a full boil. Boil potatoes for 15 to 20 minutes, until potatoes are very tender when poked with a fork.
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![5 sweet potatoes in a pot with water with steam](https://img.ehowcdn.com/375/clsd/11/19/70ab01e012f9472c824533d048ec4228.jpg)
Step 2
Transfer the sweet potatoes to a cutting board and allow them to cool completely. Once cool enough to handle, remove the skins from the sweet potatoes and discard.
![5 boiled sweet potatoes on a cutting board](https://img.ehowcdn.com/375/clsd/11/19/c25b3bca3a134695afd723d8e3894577.jpg)
Transfer the sweet potato flesh to a bowl and mash well with a fork.
![Measuring cup with mashed sweet potato and a fork](https://img.ehowcdn.com/375/clsd/11/19/4fb1491a2d0343c98c3918ab3b7569c5.jpg)
Step 3
Preheat the oven to 375° F and lightly spray or grease a 13" x 9" casserole dish.
Step 4
Add the eggs, half & half, and pure vanilla extract to a blender and blend until smooth.
![half and half, eggs, and vanilla extract in a blender](https://img.ehowcdn.com/375/clsd/11/20/7bb18f44f69446e4ac8aea361ed8bf02.jpg)
Add the remaining ingredients to the blender (mashed sweet potato, melted butter, brown sugar, cinnamon, nutmeg and sea salt) and blend until smooth.
![Ingredients of sweet potato souffle in a blender](https://img.ehowcdn.com/375/clsd/11/20/042b369e5bac444b809c263ea55a36c1.jpg)
![Ingredients for sweet potato souffle in a blender](https://img.ehowcdn.com/375/clsd/11/20/a2731b3f6a0f4e298a9c342346ab4ef6.jpg)
Step 5
Pour the soufflé mixture into the prepared casserole dish.
![Souffle mixture being poured into a casserole dish](https://img.ehowcdn.com/375/clsd/11/20/7b104bf2414544f7b7b8e63a65cd4992.jpg)
Bake on the center rack of the preheated oven for 50 to 60 minutes, until the soufflé has set up and has risen. Serve immediately with your main entree.
![casserole dish of souffle with scoop taken out](https://img.ehowcdn.com/375/clsd/11/20/5841f92b348349d29d619266dd61d24f.jpg)