In a medium bowl, whisk together oats, flour, baking powder, cinnamon, and salt. In a separate bowl, whisk together coconut oil, egg, and vanilla. Stir in the maple syrup until thoroughly incorporated.
Add in the flour mixture, stirring until just incorporated. Fold in the carrots and chill dough for at least 30 minutes
Preheat the oven to 325°F, and line a baking sheet with parchment paper.
Drop the cookie dough into 14 rounded scoops on the baking sheet. Slightly flatten the cookies with a spatula.
Bake for 12-15 minutes. Cool on baking sheet for at least 15 minutes before turning onto a wire rack.