Double Chocolate Oatmeal Cookies

0 Preheat your oven to 350°F. Line baking sheets with parchment paper or silicone baking mats.
1 In a medium bowl, whisk together the rolled oats, flour, baking soda, baking powder, salt, and ground cinnamon. Set aside.
2 In a large mixing bowl, cream together the softened butter, light brown sugar, and granulated sugar until light and fluffy, about 2-3 minutes.
3 Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract.
4 Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix the dough.
5 Gently fold in the semisweet chocolate chips and chopped nuts (if using) until evenly distributed throughout the dough.
6 Use a cookie scoop or spoon to drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart.
7 Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden but the centers are still soft. The cookies will continue to set as they cool.
8 Allow the cookies to cool on the baking sheets for 5 minutes before transferring them to a wire rack to cool completely.