Sweet potato casserole in a white dish with a plate of sweet potatoes and a stainless steel fork in front next to a white napkin and glasses of milk all on a light surface (with logo overlay)

Grandpa’s Sweet Potato Casserole

Sweet potato casserole is a staple at most Thanksgiving tables. Add some marshmallow creme and it’s closer to a yummy dessert.

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Every Thanksgiving my grandpa is in charge of the sweet potato casserole. We call it a side dish, but really it’s more like a dessert. Yes, it’s sweet potatoes, but we top it with marshmallow creme and brown sugar. So it’s a bit of your starch/veggies and dessert.

Of course, if you don’t want the marshmallow creme, you can skip that. Then you would basically be making candied yams. In my opinion, though, the marshmallow is what makes this so delicious.

Most of the time, grandpa put the marshmallow creme on top as-is. When I make it, I like to put it under the broiler to brown the marshmallow on the sweet potatoes just a bit.

Grandpa’s Sweet Potato Casserole Step by Step

Ingredients

  • 4 tbsp butter, softened
  • 4 large sweet potatoes, peeled and sliced
  • 1 cup brown sugar
  • 1 jar marshmallow creme
Ingredients for sweet potato casserole in dishes on a white surface

Preparation

Preheat the oven to 350F.

In a 9×13 baking dish, spread out 2 tbsp of butter.

Melted butter in a white casserole dish on a light surface

Spread the potatoes on top of the butter.

Sliced sweet potatoes in a white casserole dish on a light surface

Add the brown sugar, then top with the remaining butter.

Sliced sweet potatoes covered with brown sugar and butter in a white casserole dish on a light surface

Bake for 1 hour.

Cooked sweet potatoes in a white casserole dish on a light surface

Top with marshmallow creme while still warm.

Cooked sweet potatoes covered with marshmallow fluff in a white casserole dish on a light surface

Place under the broiler for a few minutes to brown the marshmallow creme, if desired.

Sweet potato casserole in a white dish with a plate of sweet potatoes and a stainless steel fork in front next to a white napkin and glasses of milk all on a light surface (vertical)

Grandpa’s Sweet Potato Casserole Leftovers

Any leftover sweet potato casserole can be stored in an airtight container in the refrigerator for up to 2-3 days. We like to reheat it in the oven so they don’t get soggy.

Recipe

Originally Published On: September 5, 2022

Sweet potato casserole in a white dish with a plate of sweet potatoes and a stainless steel fork in front next to a white napkin and glasses of milk all on a light surface

Sweet Potato Casserole

Sweet potato casserole is a staple at most Thanksgiving tables. Add some marshmallow creme and it's closer to a yummy dessert.
Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes
Course:
Dessert
|
Side Dish
Cuisine:
American
Diet
Gluten Free
Keyword:
casserole
|
marshmallow
|
sweet potatoes
|
thanksgiving
Dietary Needs:
Gluten-Free
|
Nut-Free
Servings: 6 servings
5 from 7 votes

Ingredients

  • 4 tbsp butter (softened)
  • 4 large sweet potatoes (peeled and sliced)
  • 1 cup brown sugar
  • 7 oz marshmallow creme

Recommended Equipment

Instructions

  • Preheat oven to 350F
  • In a 9×13 baking dish, spread out 2 tbsp of butter
  • Spread the potatoes on top of the butter
  • Add the brown sugar, then top with the remaining butter
  • Bake for 1 hour
  • Top with marshmallow creme while still warm
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Nutrition Facts
Sweet Potato Casserole
Amount Per Serving (1 serving)
Calories 438 Calories from Fat 72
% Daily Value*
Fat 8g12%
Saturated Fat 5g25%
Trans Fat 0.3g
Polyunsaturated Fat 0.3g
Monounsaturated Fat 2g
Cholesterol 20mg7%
Sodium 153mg6%
Potassium 559mg16%
Carbohydrates 94g31%
Fiber 5g20%
Sugar 62g69%
Protein 2g4%
Vitamin A 21608IU432%
Vitamin C 4mg5%
Calcium 78mg8%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.

All nutritional information is based on third-party calculations and should be considered estimates. Actual nutrition content will vary based on brands used, measuring methods, portion sizes, and more.

19 thoughts on “Grandpa’s Sweet Potato Casserole”

  1. Mmmm this sounds yummy! I haven’t had a sweet potato casserole but you piqued my interest with your recipe. I can’t wait to make this! Perfect for the upcoming season and even Thanksgiving.

  2. We are a family of sweet potato lovers, so this is right up our street and a must try one weekend, because it looks yummy xx

  3. Wow! Just a few ingredients and a lazy bum like me can also experiment with this recipe. Btw sweet potato is so versatile and i like it’s mild aroma.

  4. 5 stars
    That’s certainly something I’ve never tried. What an unusual combination although I can really see that working well. I need to try this next time I have guests and see what they think.

  5. 5 stars
    You’re Grampa is awesome! He knows how to make a sweet potato casserole. I love that it is gluten-free and I would put about 6 inches of marshmallow cream on top!

  6. Bedabrata Chakraborty

    Sweet potatoes are widely available in my locality. Plus i love a good casserole. But dessert casserole is new to me. Will surely try this recipe.

  7. This sweet potato casserole dish is new to me. It is so full of health. Plain boiled sweet potatoes are not a hit with my kids, but this will surely be.

  8. Turtles Mosaic Artwork

    This looks so so good!!! I can’t wait to make your grandpas’ recipe, can’t wait!!!! I love sweet potatoes.

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