Preheat the oven to 350 °F. Line your pan with parchment paper, or grease with coconut oil.
In a small bowl, add the ground flax seed and water, and set aside for 5 minutes.
In a small bowl, mix the flour, salt, baking soda, cinnamon, chocolate chip cookies and walnuts. Set aside.
In a large bowl, mix the sugar, oil, flax egg mixture, and non-dairy milk. Add the dry ingredients, and fold just until it is incorporated.
Scoop dough into ~2 inch (~5 cm) balls onto the cookie pan. With your palms/fingers, flatten the balls.
Bake for 9 - 10 minutes for soft cookies. For crispier cookies, bake for 12 - 13 minutes.
Allow to cool before serving, and enjoy!