Prick a sweet potato with a fork and place it in a microwave-safe dish; microwave until soft, 5 to 10 minutes. Allow it to cool, mash, then measure out 3/4 cup of the sweet potato, and save the rest for another preparation. *See notes.

Preheat the waffle iron according to the manufacturer's directions.

In a large bowl, mix together the flour, baking powder, nutmeg, and salt.

In another bowl, combine the sweet potato, milk, eggs, melted butter, sugar, and vanilla extract. Add the sweet potato mixture to the flour mixture and stir until the batter is smooth.

Pour the batter into the preheated waffle iron and cook until golden brown, about 5 minutes, following the manufacturer's instructions. Repeat with the remaining batter.

Serve with a mix of nuts, dried fruits and maple syrup.