Line a large baking sheet with parchment paper; set aside.
In a large bowl, whisk together the coconut oil, brown sugar, and vanilla, beating until well combined.
Add in the oat milk and applesauce and whisk until well combined; set aside.
In a separate bowl, combine the flour, baking soda, and salt. Whisk well to combine.
Add the dry ingredients into the wet mixture. Stir ingredients until combined using a wooden spoon or very study spatula.
Fold in chocolate chips.
Scoop cookie dough onto the prepared cooking sheet, leaving at least an inch in between cookies for spreading.
Bake for 9-10 minutes, or until the cookie edges are golden and the centers have set.
Cool cookies on the baking sheet for 15 minutes before transferring them to a cooling rack.
Notes
This batter will be very thick! If the dough appears too sticky, add a little more flour, one tablespoon at a time. If the dough appears too dry, add a tablespoon of the oat milk.