In a large mixing bowl, whisk the dry ingredients together and make a well for the wet ingredients. Pour the vanilla and a 1/2 cup of the aquafaba into the well and stir until just combined. Add more aquafaba by the tbsp if needed. The dough should be sticky, but not wet. Make sure your hands are clean and begin kneading the dough until the flour is fully incorporated and it forms a ball. Kneading the dough will make it firmer.
The Nutrition Facts are an estimate only.
Makes approximately 2 dozen cookies.