Start by preheating your oven to 350°F (175°C). This ensures that your cookies bake evenly.
In a large mixing bowl, whisk together the old-fashioned oats, all-purpose flour, baking powder, baking soda, ground cinnamon, ground cloves (if using), and salt. Set this aside as you prepare the wet ingredients.
In a separate bowl, combine the melted and cooled butter with the light brown sugar and granulated sugar. Mix until well blended. Then, add the large egg and pure vanilla extract, mixing until smooth.
Gradually add the dry mixture to the wet mixture, stirring until just combined. Be careful not to overmix; you want to keep the cookies tender.
Gently fold in the chocolate chips, making sure they are evenly distributed throughout the dough.
Using a cookie scoop or tablespoon, drop rounded balls of dough onto a lined baking sheet, spacing them about 2 inches apart. Bake in your preheated oven for 10-12 minutes, or until the edges are lightly golden but the centers are still soft.
Allow the cookies to cool on the baking sheet for about 5 minutes before transferring them to a cooling rack. Let them cool completely (if you can resist!) before indulging.
