Preheat the oven to 375 degrees Fahrenheit. Add 1 tablespoon of chia seeds with 3 tablespoons of water in a small ramekin and let set for 3 minutes until a thick gelatinous consistency forms. Add chia mixture into a large mixing bowl with coconut oil and vanilla extract and mix together. Fold in dates and carrots. Lastly, mix in oats, whole-wheat pastry flour, baking powder and salt.
Form cookie batter into disks and place on a baking sheet and bake for 12 - 15 minutes. Let cookies cool before adding a layer of peanut butter between 2 cookies. Store cookies in the refrigerator and enjoy within 1 week, or store in the freezer and enjoy within 2 – 3 weeks