In a large bowl, mix flour, baking powder, baking soda, cinnamon, and salt.
In another bowl, whisk mashed sweet potato, eggs, milk, vanilla, and brown sugar until smooth.
Combine wet ingredients with dry ingredients, stirring until just mixed.
Heat a non-stick skillet over medium heat and lightly grease with butter or oil.
Pour 1/4 cup of batter onto the skillet for each pancake.
Cook until bubbles form on the surface and the edges look dry, about 2-3 minutes.
Flip and cook for another 2-3 minutes until golden brown.
Serve warm with maple syrup, fresh fruits, or your favorite topping.