Preheat the oven to 350 degrees F. Line a cookie sheet with parchment paper.
Make the flax seed egg replacer: in a small bowl, combine the flax seed meal with three tablespoons of water. Let it sit for a few minutes until it becomes a gel.
In a large bowl, cream the vegan buttery spread, coconut sugar, and organic sugar on high speed until fluffy. Add the applesauce, vanilla extract, and the flax seed egg replacer, and mix until combined.
Add the gluten free flour, salt, baking soda, and cinnamon, and mix until incorporated.
Turn off mixer and add the oats and chia seeds. Stir with a spoon to combine.
Drop the dough by rounded tablespoons onto the cookie sheet.
Bake at 350 degrees F for about 12-14 minutes. The cookies may look a little underdone in the middle, but that's okay. They will continue to cook as they cool. Do not over bake.
Let cool on the cookie sheet for about 10 minutes, then remove and let cool fully on a wire rack.
Notes
Store cookies in an airtight container. They should stay fresh for about 5 days.