Preheat oven to 350°F and line a 9 x 9 square baking dish with parchment paper.
Add ground chia seeds to a medium bowl and add water. Stir thoroughly. Let sit for 2 to 3 minutes and it will gel up.
Add the jar of almond butter, applesauce, and vanilla extract. Stir thoroughly.
Add the coconut sugar, baking soda, sea salt, and cocoa powder. Stir thoroughly. The mixture will be very thick.
Fold in chocolate chips. The dough will be pretty thick and you may need to cut them in with a large spoon.
Add the mixture to your parchment lined dish. Flatten the top with a spoon.
Bake for 35 minutes until slightly crispy around edges. Let rest for 30-60 minutes before cutting. The cooler they are the easier they will be to cut and serve. I recommend keeping them on the counter for 1-2 days. If they last longer than this, place them in a sealed container in the fridge or freeze them.