In a medium sized bowl, combine the flax with water, whisk and set aside. Remember to whisk every minute or so - do this about 3-4 times total.
In a shallow bowl (I use a pie dish), add the milk, cinnamon and vanilla. Stir in the flax mixture.
Heat your frying pans over medium low heat - I use 2 to speed things up. Add 1 tablespoon of butter onto each, and let melt.
Dunk both sides of the bread into the mixture, then place it onto the frying pan. Fry both sides until golden brown, about 3 minutes per side.
Continue with the other slices, then plate, top with maple syrup and berries. Dig in!