This make-ahead sweet potato casserole features silky roasted sweet potatoes topped with a buttery pecan streusel. Perfect for holidays, it can be assembled up to two days in advance and tastes even better the next day.
Roast sweet potatoes instead of boiling to concentrate natural sugars and prevent watery filling. Toast pecans before using for deeper flavor. Keep butter cold for streusel to ensure crunchy texture. If streusel browns too quickly, tent with foil. Casserole tastes even better the next day.
Keywords: sweet potato casserole, pecan streusel, make-ahead, Thanksgiving, holiday side dish, comfort food