Preheat oven. Turn oven on to 350°.
Make chia egg. To a small bowl add chia seeds and water, then stir. Set aside.
Add wet ingredients. To a large mixing bowl add brown sugar, coconut oil, vanilla, plant based milk and chia egg. Stir to combine.
Add dry ingredients. To the same bowl, add the flour, baking soda, salt, and cinnamon. Stir to combine.
Add oats. To the same bowl add in the old fashioned rolled oats, stir until well combined.
Add chocolate chips. Lastly, to the bowl add in the chocolate chips. Stir until well-incorporated.
Prepare to bake. To a cookie sheet lined with parchment, scoop evenly sized cookies. You will likely fit 12 with some dough leftover for about another half batch, depending on size. Press cookies down with a measuring cup or drinking glass to help with spread. Sprinkle with course salt, if desired.
Bake cookies. Bake cookies for 12 minutes or until they are golden around the edges, also depends on size.
Enjoy! Let cookies cool slightly and then enjoy!