Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper.

In a mixing bowl, beat room temperature butter and brown sugar until light and fluffy, about 2-3 minutes.

Add the egg and mashed sweet potatoes, mixing until smooth.

Whisk together the all-purpose flour, baking soda, salt, and spices in a separate bowl.

Gradually mix the dry ingredients into the wet mixture until just combined.

Using a cookie scoop, drop balls of dough onto the baking sheets, spacing them two inches apart.

Bake for 12-15 minutes until the edges are lightly golden and centers are soft.

Let cool on sheets for a few minutes before transferring to a wire rack.