Boston Market Sweet Potato Casserole has to be one of my favorite ways to make candied sweet potatoes. Now, if you don’t live near a Boston Market restaurant, you can either drive far or make this copycat recipe for a holiday favorite.
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Sweet Potato Casserole with Marshmallows and Oatmeal Crust
Boston Market Sweet Potato Casserole has to be one of my favorite ways to make candied sweet potatoes. Now, if you don’t live near a Boston Market, you can either drive far or make this copycat recipe for this holiday favorite.
In fact, with just a little bit of elbow grease, you can have a great-tasting sweet potato casserole any time of the year. This recipe combines a thick oatmeal cookie-like crust, fluffy melted marshmallows, and a sweet and savory potato layer. Resisting this dish is tough.
About Boston Market
As everyone knows, Boston Market is not just in Boston. It’s a chain of fast-casual stores that specializes in rotisserie chicken and other meat dishes, along with a choice of sides. However, the founders, Arthur Cores and Steven Kolow, did reside in Boston.
Their concept was to provide food that was fresh and healthy but delivered quickly at prices closer to those of your typical fast food.
First Boston Market Locations
In 1985, the founders opened the first store which was called the Boston Chicken store. The store was a huge success, the Boston Globe wrote it up, and the line stretched well outside the door.
Following a couple of changes in ownership, by the end of 1992, there were 217 stores throughout the U.S., and in 1995 the name was changed to Boston Market to reflect the fact that the stores did not just sell chicken.
The chain went through more ownership changes, and as of the beginning of 2018, there were approximately 450 Boston Markets spread over twenty-eight states. Read more about the history of Boston Market.
Here’s a list of what you need:
- Sweet potatoes
- Ground cinnamon
- Ground nutmeg
- Vanilla extract
- Dark brown sugar
- Heavy cream
- All-purpose flour
- Quick-cooking oats
- Miniature marshmallows
How to Make Boston Market Sweet Potato Casserole
- Wrap sweet potatoes in foil, place them on a baking sheet, and bake at 350 degrees for about an hour, until they are easily pierced with a fork.
- Allow the sweet potatoes to cool until you can handle them.
- Remove foil and sweet potato remove skins.
- Place the cooked sweet potatoes into a large bowl.
- Mash the sweet potatoes with butter until mostly smooth.
- Add eggs, salt, cinnamon, vanilla, and nutmeg and beat until you have a uniform mixture.
- Add brown sugar and cream and mix well.
- Combine flour, brown sugar, salt, oats, and cinnamon in a medium bowl and stir together well.
- Stir in butter with a fork until you have a crumbly mixture.
- Lightly coat a 9 x 13-inch baking pan with cooking spray.
- Spread the sweet potatoes in the pan.
- Top with the marshmallows, then crumble the oatmeal crust on top of the marshmallows.
- Bake at 350 degrees for 30 to 45 minutes.
Make Ahead Notes
If you want to make this ahead of time, I suggest you bake it fully and then reheat it on the 2nd day in the oven. The raw eggs in this dish make this undesirable to mix ahead one day and to bake the second day.
Love Boston Market? Try these copycat recipes!
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Boston Market Sweet Potato Casserole
Sweet Potato Layer
- 5 pounds sweet potatoes
- 4 tablespoons butter
- 2 eggs slightly beaten
- 1 teaspoon salt
- 1 teaspoon ground cinnamon
- 1/2 teaspoon vanilla extract
- 1/2 teaspoon ground nutmeg
- 1/2 cup dark brown sugar
- 1/4 cup heavy cream
- Nonstick cooking spray
Cookie Crust Layer
- 1/2 cup all-purpose flour
- 1 cup dark brown sugar
- 1/4 teaspoon salt
- 1 cup quick-cooking oats
- 1/2 teaspoon ground cinnamon
- 1/4 pound butter
- 2 cups miniature marshmallows
Sweet Potato Layer
- Preheat the oven to 350 degrees F.
- Wrap sweet potatoes in foil, place them on a baking sheet and bake for about 1 hour. After 1 hour, test by piercing with a fork; if you can pierce them easily, they are done baking. If not, bake them a little longer and test again. Allow the sweet potatoes to cool until you can handle them, remove foil, and remove skins by simply pushing off the skins from the flesh of the potato.
- Place the cooked potatoes into a large bowl. If using canned sweet potatoes, skip the baking. Just open the cans and drain off the syrup. Mash the sweet potatoes with the butter using a pastry blender or a potato masher until mostly smooth.
- Add the eggs, salt, cinnamon, vanilla, and nutmeg and beat until you have a uniform mixture. Add the brown sugar and cream and mix well.
Oatmeal Cookie Crust
- Combine the flour, brown sugar, salt, oats, and cinnamon in a medium bowl and stir together well. Stir in the 1/4 pound butter with a fork until you have a crumbly mixture.
- If you had turned off the oven, heat it again to 350 degrees F. Lightly coat a 9 x 13-inch baking pan with cooking spray.
- Spread the sweet potatoes in the pan. Top with the marshmallows, then crumble the oatmeal crust on top of the marshmallows. Bake 30 to 45 minutes.