Top Secret Recipes | Boston Market Sweet Potato Casserole

Home >> Recipes >> Boston MarketŪ >> Boston Market Sweet Potato Casserole Recipe  
Boston Market Sweet Potato Casserole Recipe
Boston Market Sweet Potato Casserole
By Todd Wilbur

Recipe Type: Side Dish
Calories: 730
Cook Time: 2 hours 20 minutes
Recipe Rating: 4.0 (6 reviews)
This popular pick from Boston Market may be called a side dish, but it tastes more like dessert. With the brown sugar, cinnamon, and butter in there, and the oatmeal streusel on top, you will be reminded of sweet potato pie; yet the dish goes great alongside meals as varied as low-key chicken dinners or bigger-key holiday banquets. And the great part is, if you're planning to use this for entertaining, you can make everything but the streusel a day ahead so you won't be stressed at crunch time. Just cover the filled baking dish and pop it in the fridge. Take it out a few hours before you plan to bake it so the casserole can come close to room temperature, then you simply top it off with your streusel and pop the whole thing in the oven.

Source: "Top Secret Recipes Unlocked" by Todd Wilbur.

6 cups mashed sweet potatoes (5 to 6 potatoes--see step #1)
3/4 cup dark brown sugar
1/2 cup heavy cream
1/4 cup melted butter
1/4 teaspoon ground cinnamon
1/4 teaspoon salt
2 cups mini marshmallows

Oatmeal Streusel
1/4 cup rolled oats
2 tablespoons dark brown sugar
1 tablespoon all-purpose flour
1/8 teaspoon ground cinnamon
2 tablespoons cold butter

1. To make the sweet potatoes, place them on a baking sheet and pop them into a preheated 400 degrees F oven for 60 to 70 minutes, or until they are tender. When the potatoes are cool enough to handle, scrape out the insides and use an electric mixer on high speed to beat the potatoes until they are mashed and smooth. Measure exactly 6 cups of the mashed sweet potatoes into a large bowl.

2. Add the brown sugar, heavy cream, melted butter, cinnamon, and salt into the sweet potatoes and mix well with the beater until all the ingredients are incorporated. Pour this mixture into an 8 x 8-inch baking dish.

3. Preheat oven to 350 degrees F.

4. Make the oatmeal streusel by grinding the rolled oats to a coarse flour using a food processor. Make sure there are still visible bits of oats in there. A blender will also work. 

5. Combine the oat flour with the brown sugar, flour, and cinnamon in a small bowl. Cut the cold butter into the dry mixture using a pastry knife or a fork. You should have a crumbly mixture with pea-size bits. Sprinkle this oatmeal streusel over the sweet potato mixture and pop it into the oven for 50 to 60 minutes, or until the top begins to brown slightly.

6. When you remove the casserole from the oven, immediately spread the marshmallows over the top. Let this sit for about 10 minutes. The heat from the casserole will melt the marshmallows, and then it's ready to serve.

Makes 6 to 8 servings.

Submitted on: 11/28/13
Great taste! Not a fan of marshmallow so I did not use them. We do not have this restaurant in my area so I can't compare. May add some chopped pecans to the topping next time.
Submitted on: 11/23/06
It doesn't taste exactly like Boston Market's version, I think it's actually better - not as sweet (but it could easily be made sweeter if that's what you prefer). It was a hit at the last potluck I went to.
Submitted on: 03/07/06
I am addicted to Boston Market's sweet potato casserole and was dissapointed by this recipe. The oat mixture should be 'lumpier' with whole oats, not processed oats. The sweet potatoes needed something extra too. I guess I'll just have to keep giving my money to Boston Market on this one...
Submitted on: 02/26/06
Try using instant maple and brown sugar oats.... as well as swirling some marshmallows in the potato mix before putting them on top.
Submitted on: 12/24/05
Not quite as sweet as Boston Market's, but awesome anyway!!
Submitted on: 10/24/05
Awesome addition to Ham/Turkey or Potluck meal!!