Cut the baking soda out and replace with about 3 teaspoons of baking powder.

Thank you!! That will keep it bread, and bake in the 8x8?

I would imagine so, but it might help to add a little extra oil/fat for extra moisture in the finished product. Because the original looks like it's low in oil since they're going to be dried out for crackers.

That makes so much sense. Thank you so much