Combine the sugar and arrowroot powder in a small bowl, stir to combine.

In a large mixing bowl add the aquafaba and vinegar and begin to whisk. 

After about 5 minutes of whisking on low, when mixture has started to get frothy, add sugar mixture a few tablespoons at a time, allowing the sugar to fully incorporate before adding more. 

While adding in the sugar mixture, begin to whisk on high for about 8-10 minutes until the texture has reached stiff white glossy peaks and you can turn the bowl upside down without anything sliding or falling out!

If you have the vanilla powder, whisk it in at this point for about 15 seconds until visibly distributed.

Enjoy right away and keep any leftovers in the fridge in an airtight container, it should keep for about 10 days!