Preheat oven to 350 degrees. Coat a baking sheet with cooking spray.

Make the flax egg by combining the flaxseed and water in a small bowl. Set aside.

Cream the vegan butter and brown sugar with an electric mixer until smooth. Add in the butterscotch extract, apple sauce and flax egg. Beat until combined well.

In another bowl, combine the flours, baking powder and salt. Mix with a wooden spoon, then add in the wet ingredients and stir. Add in the mini chocolate chips and stir until mixed in evenly.

Use a cookie scooper or spoon to form 18 cookies on the baking sheet, flattening them with a spatula or the bottom of a glass. The cookies will not spread much when baked, so you can place them closely together.

Bake for 10 minutes, or until lightly browned. Transfer to a cooling rack and allow them to slightly cool before enjoying.