- In a medium bowl, whisk together the flour, baking powder, salt, nutmeg, and cinnamon. 
- In another medium bowl, mix the milk, sweet potatoes, butter, eggs, and vanilla. 
- Add the dry ingredients to the wet mixture, stirring until well combined, but do not overmix. 
- Spray a nonstick skillet or griddle with cooking spray and heat over medium heat (about 350°F). 
- When hot, pour ⅓ cup of batter into the skillet. Spread the batter out more, if necessary, to about a 4-inch diameter. 
- Cook the pancakes in batches, making sure not to overcrowd the skillet. Let them cook for 3-4 minutes, or until golden brown, bubbles form on the surface, and the edges look set. 
- Flip over the pancakes. Cook an additional 3-4 minutes until the other side is also golden brown. 
- Before the next batch, wipe out the pan with a paper towel. Repeat with the remaining pancake batter. 
- Serve warm, topped with maple syrup and whipped cream.