When you need an easy Thanksgiving dessert that feels a little playful but still cozy and seasonal, this sweet potato fry dessert is such a fun one to pull together. Using frozen sweet potato fries keeps the prep wonderfully simple, and with just brown sugar, butter, and mini marshmallows, they bake into a warm sheet pan treat that tastes a bit like a shortcut sweet potato casserole with crisp edges and gooey sweetness on top.
Serve this dessert warm with a scoop of vanilla ice cream or a dollop of whipped cream if you want to dress it up a little. It also fits right in on a holiday table beside roasted turkey, ham, or all the classic Thanksgiving sides, and a light cup of coffee or hot cider makes a lovely pairing when everyone is ready for something sweet after dinner.
4-Ingredient Oven Baked Thanksgiving Dessert
Servings: 6
Ingredients
1 bag (about 20 ounces) solid unthawed frozen sweet potato fries
4 tablespoons butter, melted
1/2 cup packed brown sugar
2 cups mini marshmallows
Directions
1. Preheat your oven to 425°F and lightly grease a large oven-safe sheet pan.
2. Spread the solid unthawed frozen sweet potato fries in an even layer on the sheet pan. Drizzle with the melted butter and sprinkle the brown sugar evenly over the top, then toss gently right on the pan to coat.
3. Bake for 20 to 25 minutes, stirring once halfway through, until the fries are tender inside and lightly caramelized around the edges.
4. Remove the pan from the oven, scatter the mini marshmallows evenly over the fries, and return the pan to the oven for 3 to 5 minutes, just until the marshmallows are puffed and lightly toasted.
5. Let the dessert cool for a few minutes, then serve warm straight from the pan.
Variations & Tips
Pecan Topping: If your family likes a little crunch, sprinkle a small handful of chopped pecans over the marshmallows before the final bake. It gives the dessert more of that classic holiday casserole feeling.
Kid-Friendly Serving Idea: For picky eaters, serve smaller portions in little bowls and let everyone add their own topping like extra marshmallows or whipped cream at the table. That small bit of choice can make dessert feel extra special.
Doneness Tip: Since different brands of frozen sweet potato fries can vary in thickness, keep an eye on the bake time. Thicker fries may need a few extra minutes before adding the marshmallows.
Easy Cleanup: Line the sheet pan with parchment paper if you like, because the melted sugar and marshmallows can get sticky once baked.