1Egg or Egg Equivalent (if vegan)such as 1/4 C Applesauce, 1 Tbl Flax + 3 Tbl Water, powdered egg replacers, etc.
Preheat oven to 375 degrees.
In the bowl of an electric mixer, beat the vegan margarine and peanut butter until combined.
Add the remaining dough ingredients and using two thirds of it, press into a quarter sheet pan. If you don't have a quarter sheet pan, you can either double the recipe for a half sheet pan or use cake pans. Whatever you have on hand will work.
In a small pan over low heat, add the chia spread. Evenly distribute the spread over the base layer.
Add the oats and sugar to the remaining 1/3 of the dough and crumble it over top of the chia spread.
Bake for 15-20 minutes or until set and golden brown. Allow to cool completely before cutting.
Slice the pie into slabs and serve with non-dairy vanilla ice cream.