Yummy Sweet Potato Casserole

INGREDIENTS

• 4 cups sweet potato, cubed
• 1/2 cup white sugar
• 2 eggs, beaten
• 1/2 teaspoon salt
• 4 tablespoons butter, softened
• 1/2 cup milk
• 1/2 teaspoon vanilla extract
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• 1/2 cup packed brown sugar
• 1/3 cup all-purpose flour
• 3 tablespoons butter, softened
• 1/2 cup chopped pecans