Instructions:

1. Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking pan.
2. In a large mixing bowl, cream together the softened butter and sugar until light and fluffy.
3. Add the eggs one at a time, mixing well after each addition.
4. Stir in the mashed sweet potatoes and vanilla extract until well combined.
5. In another bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, and salt.
6. Gradually add the dry ingredients to the wet mixture, alternating with the buttermilk. Start and end with the flour mixture, mixing until just combined.
7. Pour the batter into the prepared baking pan and smooth the top with a spatula.
8. Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
9. Allow the cake to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely.
10. Serve plain or with a dollop of whipped cream for an extra treat!
Enjoy this sweet potato butter cake with family and friends, and let the warm memories flow!