For crispy waffles, blend the ingredients on high for one minute if you use Vitamix. If you use a Ninja blender, you can mix it longer as Ninja's vortex is different. Don't worry about overmixing, because Heavenly Waffles mix is not like other waffle mix, they will still be moist.
Also, leave the waffle make iron open longer than 20 seconds before closing to let the steam out.
Last but not least, I used the non-stick spray from Heavenly Waffles, which has a higher smoke point and should save the life of our waffle maker.