Preheat 350F and line a baking sheet with parchment paper.
Cream together butter and sugar. Add in the egg, maple syrup, and vanilla extract and mix. Mix the dry ingredients (oat flour, baking soda, and salt.) Add dry ingredients to the wet ingredients and mix until just combined.
Fold in chocolate chips. Using a cooking scoop, place two tablespoons cookie dough at a time on a cookie sheet two inches apart. Bake for 10-12 minutes or until cookies are lightly golden brown around the edges. Leave the cookies on the sheet until they are completely cooled.