Combine the sweet potato and egg. Stir well. If desired, add 1/2 teaspoon cinnamon.
Lightly spray a skillet with non-stick spray and heat on medium heat. Pour about 1/4 cup of the batter into the pan. Cook about 3 to 4 minutes, or until pancakes begin to bubble in the center. Carefully flip and cook for another 2 to 3 minutes. Once cooked, remove pancake from the pan and repeat the process until all the batter has been used. Grease the skillet as needed with non-stick spray in-between cooking the pancakes.
Serve hot. If desired, top with maple syrup, honey, coconut butter, fresh fruit, or your favorite jam!