Sweet Potato Casserole with Marshmallows

Can you believe Thanksgiving is only a week away?! It’s crazy! And it’s time to start planning out your meal if you haven’t already.

Last week I shared one of my Thanksgiving essentials – Cheesy Hash Brown Casserole. Today I share with you another true essential. Sweet Potato Casserole with marshmallows. No nuts here, my friends. I like it sweet, remember? Without this, my Thanksgiving feast is pretty much over.

Sweet Potato Casserole with Marshmallows! Perfect for Thanksgiving and holidays!

Sweet Potato Casserole with Marshmallows! Perfect for Thanksgiving and holidays!

For the past few years I’ve been working on perfecting these sweet potatoes. They truly are my favorite and they must be just the right combo of enough sweetness, marshmallows and the right consistency. Not too runny. I could eat these for every meal, every day. Even for dessert.

So if you don’t already have a recipe you love, or even if you do, these would be some good ones to try. Seriously. I practically lick the spot on the plate where these were. Just to get every last bite (or lick).

Sweet Potato Casserole with Marshmallows! Perfect for Thanksgiving and holidays!

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Sweet Potato Casserole with Marshmallows for Thanksgiving

Sweet Potato Casserole with Marshmallows

  • Author: Life, Love and Sugar
  • Prep Time: 5 minutes
  • Cook Time: 20 minutes
  • Total Time: 25 minutes
  • Yield: 6 Servings 1x
  • Category: Side Dish
  • Method: Oven
  • Cuisine: American


A delicious, nut-free version of the classic Thanksgiving Sweet Potato Casserole with Marshmallows recipe! The perfect side dish recipe for Thanksgiving.



  • 1 29-oz can sweet potatoes, drained
  • 2/3 cup brown sugar
  • 2 tbsp salted butter, melted
  • 1 egg
  • 1/4 tsp cinnamon
  • 1/4 tsp nutmeg
  • 1 tsp vanilla
  • About 3 cups marshmallows


1. Mash sweet potatoes from the can in a large bowl. I used a fork, but if you have a potato masher you could use that.
2. Add brown sugar, butter, egg, cinnamon, nutmeg and vanilla. Mix well.
3. Put sweet potato mixture into an 8×8 casserole dish.
4. Bake at 350 degrees for 18-20 minutes.
5. Add marshmallows to the top of the casserole and bake in the oven until melted and browned on top.

Keywords: thanksgiving side dish recipe, sweet potato casserole recipe, sweet potato thanksgiving recipe


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Recipe rating

  1. Meghan Cunningham

    I only have the 40 oz can of sweet potatoes.. can you let me know the measurements? I’m so terrible with fractions lol

    1. Lindsay

      Well, you could use 3/4 of the can and then follow the recipe as written. Or you could use the whole can and add about another fourth of the rest of the ingredients to it.

    1. Lindsay

      That is totally fine. We actually just did that tonight. Just bring the casserole to room temperature prior to baking or add a little bit more bake time to account for it being colder when you put it in the oven from the fridge.

  2. Brandie

    Great recipe! I made this for thanksgiving and for Christmas too.. everyone loves it! I doubled the recipe and just doubled  the time.
    Thank you!!

    1. Lindsay

      Yes, that’s exactly what I’m doing. You’ll just either want to bring it to room temperature before baking it or expect it to need a little longer to bake. Happy Thanksgiving!

  3. Leah

    Hi, Excited to try this recipe. Do you think I could make it in a slow cooker? Any idea how? High/low and how long? I am NOT good at cooking, and it doesn’t matter how easy a recipe is, I CAN mess it up! Thank you!

    1. Lindsay

      I’m really not sure. I’ve never tried it. I imagine it would be fine, I just wouldn’t know what settings to use.

    1. Lindsay

      It’s really hard for me to say. Increasing it that much, you will clearly need to use multiple pans. Baking time is going to very much depend on the size of the pan and how much of the casserole you have in there. I would cook it until it’s at least between 150 and 160 degrees, the temperature that eggs should be cooked to.

    1. Lindsay

      The egg helps to thicken up the mixture and hold it together a little better. You can leave it out, but it does change the texture of the potatoes a little bit.

  4. Lori

    My daughter made this for a “Friendsgiving” get together. We didn’t have a lot of time so we looked for a recipe using canned sweet potatoes. It was a BIG hit. Delicious! Just the right amount of nutmeg and cinnamon. 5 stars!

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  6. Samantha

    Hi, love to make this but can’t get canned sweet potatoes in the uk. How many uncooked sweet potatoes would I need, and do I just bake them first? With anticipation!!!

    1. Life, Love and Sugar

      Hi Samantha! I’ve never used regular sweet potatoes for this recipe, so it’s hard to say. I googled for you and the answer I found is 3 large sweet potatoes. I’m not sure how accurate it is, but you could try it. And yes, you’d want to bake them until tender first.

  7. Jessie Homemaker

    Looks so yummy!! Sweet potato casserole is delicious…but I think green bean casserole has to be my all time favorite Thanksgiving food group lol, with LOTS of extra french fried onions. I like to add a little bit of sugar as well to add a sweet note to it as well 🙂

    1. lifeloveandsugar

      Green Bean Casserole is another requirement of mine. I usually add a little worchestire sauce and hot sauce though to give it a little kick. I’ve never thought to add sugar and make it sweet before. What a great idea!

      1. Jessie Homemaker

        I add worcestershire sauce to mine too!! The hot sauce sounds good! I love spicy things almost as much as I love sweet things!

About Lindsay

I'm a wife and mom to twin boys, a baby girl and a sweet black lab with a serious sweets addiction! Bring on the sugar!

Scripture I’m Loving

“Be joyful in hope, patient in affliction, faithful in prayer.” Romans 12:12