
Creamy, roasted sweet potatoes whipped with browned butter and maple syrup, topped with a finely chopped pecan streusel that bakes up golden, crisp, and irresistible.
Roasting Sweet Potatoes: Roasting time varies by size, and the sweet potatoes are done when a fork slides in easily and a little caramelized syrup begins to leak out. If they’re even slightly firm, the filling will stay chunky no matter how much you mash, so make sure they are completely soft before moving on.
Dish Size Options: A 9×13-inch dish creates a thinner casserole with more streusel per bite, while an 8×11-inch dish yields a thicker, fluffier sweet potato layer. Both options bake well.
Storage Notes: Leftovers keep well in the refrigerator for up to four days when stored tightly covered or in an airtight container. The casserole freezes successfully, but for the best texture, freeze it before baking and add the streusel after thawing. If freezing leftovers, expect the streusel to soften; a minute or two under the broiler helps bring back some crunch.