Combine the flour, salt, baking powder, cinnamon in a bowl and whisk well.
In a large measuring cup place the milk, egg, and sweet potato. Blend well with a fork. Then pour into the flour mixture and add pecans. Mix well.
Melt a small tsp of butter or oil of your choice in the skillet. Pour the batter into three small rounds in the skillet and let cook on low-medium heat until bubbles appear, and the edges of the pancake look done. Flip it over and cook another minute or two.