This dish is a homemade take on the well-known steakhouse favorite, featuring an ultra-smooth sweet potato filling topped with its classic crunchy, buttery pecan streusel.Peel and boil the sweet potatoes until tender enough to pierce easily with a fork. Drain well and mash until smooth. In a large mixing bowl, blend the mashed sweet potatoes with the softened butter, granulated sugar, eggs, vanilla, milk, and salt until creamy and fully combined.
Spread the mixture evenly into a greased baking dish, such as a 9×13-inch pan or a large oval casserole.In a medium bowl, mix together the brown sugar, flour, chopped pecans, and melted butter until the mixture forms coarse crumbs.