01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, oats, baking soda, salt, cinnamon, and nutmeg until well blended.
03 - In a large bowl, beat the softened butter, maple syrup, brown sugar, and granulated sugar until light and fluffy, approximately 2-3 minutes.
04 - Beat in eggs one at a time, ensuring each is fully incorporated before adding the next. Stir in vanilla extract.
05 - Gradually mix the dry ingredients into the wet ingredients, mixing just until combined. Do not overmix.
06 - Gently fold in raisins and nuts (if using) until evenly distributed throughout the dough.
07 - Drop rounded tablespoons of dough onto prepared baking sheets, spacing approximately 2 inches apart to allow for spreading.
08 - Bake for 10-12 minutes, until edges are golden brown but centers appear slightly soft and underbaked.
09 - Let cookies cool on baking sheets for 5 minutes, then transfer to a wire rack to cool completely before serving.