In a small bowl, combine flour, baking soda, and salt. Add to the bottom of the jar and level it out.
Add brown sugar as the second layer, packing it down firmly.
Add white sugar as the third layer, smoothing it flat.
Top with chocolate chips as the final layer.
Seal the jar with the lid. Add a piece of fabric under the ring if desired.
Print the baking instructions on a cardstock gift tag and tie it to the jar with ribbon or twine.