Preheat the oven to 350ºF and line an 8x8-inch baking pan with parchment paper, lightly coated with non-stick cooking spray.
In a large bowl, whisk together eggs, coconut sugar, and almond butter until smooth. Add grated zucchini and vanilla, mixing well. Stir in almond flour, baking powder, and salt. Finally, fold in chocolate chips.
Transfer the mixture to the prepared baking pan and sprinkle a few extra chocolate chips on top (optional). Bake until the edges are golden brown and the center is set, about 27 to 30 minutes. Let it cool in the pan for 30 minutes.
Use the parchment paper edges to lift the bars from the pan, then let them cool completely before slicing into 12 squares. If you like, sprinkle some finishing salt on top.