Method
Preparation
Preheat the oven to 350°F (175°C).
In a large bowl, combine the mashed sweet potatoes, brown sugar, milk, melted butter, and beaten eggs.
Add the vanilla extract, cinnamon, and salt to the bowl, and mix until smooth and well combined.
Pour the sweet potato mixture into a greased baking dish and spread it evenly with a spatula.
Sprinkle the top with the chopped pecans and then scatter the mini marshmallows evenly over the surface.
Baking
Bake for 25–30 minutes, or until the marshmallows are golden brown and the casserole is heated through.
Let it cool slightly before serving so the topping sets and scooping is easier.
Serve warm and enjoy the mix of creamy sweet potatoes, crunchy pecans, and gooey marshmallows.
Notes
The casserole can be frozen before baking. Substitute mini marshmallows with a brown sugar-pecan streusel for a less sweet topping. Make the day ahead for Thanksgiving and bake just before serving.