In a small bowl, mix chia seeds and 1/4 cup of the water and let rest for 3-4 minutes.
In a mixing bowl, combine remaining dry ingredients – almond and coconut flour, arrowroot, salt, and baking powder.
Once the chia mixture has thickened and turned into a coagulated, gel-like mixture, add vinegar, avocado oil, and remaining 1/2 cup of water and whisk to combine.
Add the wet ingredients to your mixing bowl with the dry ingredients. Stir just enough to combine.
Onto a greased or lined baking sheet, drop approximately 1/3 cup-sized portions evenly onto the sheet.
Bake for 15-17 minutes until slightly golden and cooked through the center.