Preheat oven to 360F (180C).
Prepare the flax egg by mixing 1 tablespoon of flax meal with 3 tablespoons of water and let it rest for 15 minutes in the fridge.
In a medium bowl, mix brown sugar, vegan margarine and vanilla together.
Add the grated apple and apple pieces and the flax egg and mix well.
In a large bowl, combine flour, baking powder, salt, pumpkin spice and cinnamon.
Add the wet ingredients and mix well.
On a parchment paper lined baking sheet distribute 1 large teaspoon of cookie dough for each cookie, about 3 cm apart. Recipe yields for 9 cookies.
Bake for 15 minutes until edges are crispy but the centres still appear little bit moist.
Cool on baking sheet for 2 minutes before transfer to wire rack to cool completely.