Easy Slow Cooker Sweet Potato Casserole Recipe

Last Updated on October 24, 2026 by Mr. B

While it is a popular Thanksgiving classic, this Easy Slow Cooker Sweet Potato Casserole Recipe is absolutely perfect for any holiday celebration! Creamy mashed sweet potatoes combined with a gooey marshmallow topping make this a hands-off side dish that your family simply won’t be able to resist.

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So creamy with the marshmallows starting to melt into it!

I used a slow cooker for this recipe, mainly because it’s so easy! I can put it in the crockpot and move on to my other cooking for the day. It also frees up the oven for other side dishes or the main meal.

Serving this directly from the slow cooker keeps it warm and delicious all the way through dinner.

With dark brown sugar and the addition of the evaporated milk, you get a deliciously sweeter souffle.  This crockpot recipe is a staple for Thanksgiving and Christmas in our house. And once you try it, I’m sure it will be in yours!

Want more crockpot recipes? Try these:

Slow Cooker Garlic Mashed Potatoes

Slow Cooker Mac and Cheese Recipe

Slow Cooker Acorn Squash Recipe

Slow Cooker Maple Bourbon Glazed Carrots

This would also go great with this Oven Roasted Turkey Breast Recipe!

WATCH ME MAKE THIS EASY SLOW COOKER SWEET POTATO CASSEROLE WITH MARSHMALLOWS RECIPE BELOW! For more video recipes, subscribe to my YouTube channel: Mr. B Cooks.

Easy Slow Cooker Sweet Potato Casserole Recipe

This Easy Slow Cooker Sweet Potato Casserole With Marshmallows Recipe features creamy mashed potatoes and a gooey topping for the perfect holiday side.

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Prep Time 20 minutes mins

Cook Time 6 hours hrs

Total Time 6 hours hrs 20 minutes mins

Servings: 10

Ingredients Method Video

Ingredients

  

• 4 sweet potatoes boiled in salted water and mashed
• 5 TBSP Melted Butter
• 2 Eggs Beaten
• 1/2 Cup Dark Brown Sugar
• 1 TSP Vanilla
• 1/2 TSP Ground Cinnamon
• 5 OZ Evaporated Milk
• Mini-marshmallows to cover

Method

 

1. Combine everything in slow cooker except Evaporated Milk and Marshmallows.
2. Cook on low for 6 to 8 hours.
3. After 1 hour +/-, add Evaporated Milk and stir to combine. Continue cooking on low.
4. When ready to serve, pull out slow cooker insert and cover sweet potatoes with marshmallows.
5. Place under broiler for 30 - 60 seconds, just enough to brown the marshmallows.
6. Remove from broiler and serve hot / warm.

Video