Preheat oven to 350 degrees F. Line cookies sheets with parchment paper.

In a medium bowl, stir together the oats, Rice Flour Blend, cinnamon, baking soda, baking powder and salt.

Cream together the vegan butter, brown sugar and granulated sugar in a large bowl on medium speed with an electric mixer. Add the Chia Egg and vanilla and beat until smooth, scraping down sides of bowl. Turn mixer to low, slowly adding the oat mixture and mixing until incorporated. Fold in the raisins, if using.

Drop dough by heaping tablespoons onto cookie sheet and flatten slightly with back of spoon. Bake 10 to 12 minutes, until lightly browned on the bottom edges.