Step 1

Preheat the oven to 350 degrees Fahrenheit. Grease a medium-sized baking dish with cooking spray or butter.

Step 2

Make the crust: In a large mixing bowl, combine brown sugar, flour, chopped nuts, and melted butter with a fork until the mixture turns into coarse crumbs. Set aside.

Step 3

Prepare the sweet potato filling: in a large bowl, beat together the granulated sugar, salt, vanilla extract, sweet potatoes, egg, and butter with an electric at medium speed until smooth and well-combined, about 1 minute.

Step 4

Pour sweet potato filling into the greased baking dish. Sprinkle the crust evenly on top.

Step 5

Bake for 30 minutes. Allow the casserole to cool and set for at least 30 minutes before serving. Enjoy!