1. 1. Preheat the Oven: Preheat your oven to 350°F (175°C).

1. 1. Prepare Baking Sheet: Line a baking sheet with parchment paper or a silicone baking mat.

1. 1. Mix Dry Ingredients: In a large bowl, combine the rolled oats, whole wheat flour, baking powder, baking soda, and salt. Stir until well mixed.

1. 1. Mix Wet Ingredients: In another bowl, whisk together the melted coconut oil, maple syrup, vanilla extract, and egg until smooth.

1. 1. Combine Mixtures: Pour the wet ingredients into the dry ingredients, and mix until combined. The dough will be somewhat thick. If using, fold in the dark chocolate chips and nuts (if using).

1. 1. Scoop Dough: Using a tablespoon or cookie scoop, drop rounded tablespoons of dough onto the prepared baking sheet, leaving some space between each cookie as they will spread a little while baking.

1. 1. Bake: Bake in the preheated oven for 10-12 minutes or until the edges are lightly golden. The centers might look soft, but they will firm up as they cool.

1. 1. Cool: Remove the cookies from the oven and let them cool on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely.

1. 1. Enjoy: Once cool, enjoy your healthy oatmeal chocolate chip cookies with your family!

This recipe should yield about 16 cookies, perfect for a family of four. Any leftovers can be stored in an airtight container. Enjoy baking!