Sweet Potato Soufflé

3 cups cooked, mashed sweet potatoes
6 tablespoons butter, melted
1/2 cup orange juice
1/2 cup milk
1/2 cup brown sugar
1 teaspoon vanillas extract
1/3 cup all-purpose flour
1/2 cup sugar
1 cup chopped pecans
1/2 teaspoon salt
Grease a baking dish. In a mixing bowl combine the sweet potatoes, orange juice, milk, vanilla, sugar, salt, 3 tbsp. of melted butter, and cinnamon. Beat until fluffy, and pout into the prepared baking dish. Melt the remaining butter and add the brown sugar, flour, and pecans. Sprinkle the mixture over the potatoes. Bake in a 350-degree oven for 35 minutes. Top with marshmallows and bake until browned