Preheat the oven to 350°F (180°C). Line a baking tray with parchment paper and set aside.
In a large bowl, combine the coconut sugar, granulated sugar, coconut oil, applesauce, and vanilla; mix until smooth and evenly combined.
Add the all-purpose flour, baking soda, and salt to the wet mixture and stir until incorporated.
Fold in the rolled oats and chocolate chips until just combined; do not overmix. For thicker cookies, chill the dough for 30 minutes (optional).
Use a cookie scoop or large spoon to drop balls of dough onto the prepared tray about 2 inches apart.
Bake for 15–17 minutes, or until the edges are just beginning to turn golden brown.
Remove from the oven and let the cookies cool on the tray for 10 minutes, then transfer to a wire rack to cool completely.