You can also use a 9x9-inch baking dish in place of the miniature baking dish. After baking, cut into nine bars while in the pan. Using a spatula, remove the cut bars onto a cooling rack to cool.
You can substitute ground flax meal for chia seeds.
You can substitute egg in place of chia seeds-water mix.
You can substitute corn syrup or sugar for honey.
You can substitute almond butter or other nut or seed butter for oil (and omit lemon extract).