Preheat a waffle iron according to manufacturer's instructions.

Combine egg replacer and water in a blender; blend until smooth and all lumps have disappeared. Add almond milk, all-purpose flour, almond flour, oil, baking powder, sugar, and vanilla extract; blend on low until smooth.

Spray the preheated waffle iron with cooking spray. Pour batter by 1/4-cupfuls onto the iron and cook until waffle is golden brown and the iron stops steaming, about 5 minutes.