Ingredients
Method
- Preheat the oven to 350°F (175°C). Boil the cubed sweet potatoes until tender, about 15 to 20 minutes. Drain well.
- Mash the warm potatoes with the melted butter, 1/2 cup brown sugar, milk, vanilla, cinnamon, nutmeg, and salt until smooth. Stir in the eggs.
- Combine the oats, pecans, 1/3 cup brown sugar, 1/2 tsp cinnamon, and softened butter. Rub together with your fingers until crumbly.
- Spread the potato mixture into a 9x13 inch baking dish. Scatter the topping over it and bake for 25 to 30 minutes, until golden and bubbly.
- Let the casserole rest for 5 minutes, then serve warm.
Notes
If you love that glossy marshmallow top, scatter 1 cup of mini marshmallows over the crumble during the last 5 minutes of baking. The casserole can be assembled up to 24 hours ahead and kept covered in the fridge; add about 5 minutes to the bake time if it goes in cold.
