Preheat your oven to 350 °F and grease an 8x8 baking pan. Set aside.
In a small bowl, prepare your flax eggs by whisking 2 tablespoons of ground flaxseed together with 6 tablespoons of warm water. Set aside to thicken.
In a larger bowl, whisk together the coconut sugar, oil and vanilla until combined. Add in the thickened flax eggs and mix again.
Then add in the flour, cocoa powder, baking powder and salt and stir until combined.
Lastly add in the shredded zucchini and mini chocolate chips and stir to incorporate everything. I definitely recommend grating your zucchini as thinly as possible and coarsely chopping it so that you don't have any long strands of zucchini in your brownies.
Pour the batter into your prepared baking dish and bake for about 20-25 minutes or until a toothpick inserted into the center comes out clean.
Let the brownies cool a bit after baking, then slice into squares and serve.
Notes
*After a day, store these brownies in an airtight container in the fridge.