Sweet Potato Pound/Pudding

Ingredients:
1. 2 cups mashed sweet potatoes
2. 1 cup granulated sugar
3. 1/2 cup unsalted butter, softened
4. 4 large eggs
5. 1 teaspoon vanilla extract
6. 1 teaspoon ground cinnamon
7. 1/2 teaspoon ground nutmeg
8. 1/2 teaspoon salt
9. 1 cup all-purpose flour
10. 1 teaspoon baking powder
11. 1/2 cup milk
Instructions: