2 pounds sweet potatoes peeled (about 3 large)1/3 cup (72g) unsalted butter, melted1/2 cup (100g) packed light or dark brown sugar (i prefer dark)2 large eggs, beaten1/2 cup (120ml) heavy cream or whole milk1 teaspoon pure vanilla extract1/4 teaspoon salttopping1/3 cup (42g) all-