New Center Eatery's sweet potato waffle

This recipe for New Center Eatery's sweet potato waffle comes courtesy of owner Johnny Cannon and chef Paul Boynton.

INGREDIENTS
2 cups flour
1 1/4 cup sugar
1/4 tsp salt
1 tsp baking soda
2 tsp cinnamon
2 tsp nutmeg
1/4 cup butter/ melted/ cooled
2 cups buttermilk
2 lg eggs
1 tsp vanilla
1 cup cooked/ cooled sweet potatoes