Preheat oven to 350 and grease 8x8 baking dish well.
Mix flax egg in small bowl and set aside in fridge to firm.
In a large bowl mix in coconut oil, maple syrup, applesauce, tahini, vanilla, and flax egg.
Mix in oat flour and baking soda. Then add in chocolate.
Pour into baking dish and bake for 20-25 minutes.
Cool & enjoy!