Preheat the oven to 350°F, and line a baking sheet with parchment paper.
Beat together all of the ingredients until a dry mixture forms.
Clump the mixture together into balls, and press flat slightly with the palm of your hands.
Carefully place the cookies onto the baking sheet. Be sure to leave room between each cookie, as they will spread while baking.
Bake for 10 minutes.
Allow the cookies to cool completely before removing them from the cookie sheet.
Notes
Use oats that are certified to be free of gluten. When making this vegan oatmeal cookie recipe, it is essential to use oats labeled to be gluten-free. Regular oats may have been cross-contaminated with gluten during processing or packaging, which could cause a reaction for those with celiac disease or gluten intolerance.
Chill the dough. Chilling the dough for at least 30 minutes before baking will help the GF cookies hold their shape and prevent them from spreading too much.