Add your whole flaxseed to a spice/coffee grinder.
Mill the flax into a fine consistency.
Add the hot water to the flaxmeal and stir so it is combined evenly
Leave to rest for about 5 minutes (you can leave for longer if you wish) during this time the mixture should have turned gelatinous and that is your egg
Notes
Hot water. While some people make their eggs" using cold/warm water I highly recommend using HOT water. This congeals a lot quicker and virtually eliminates any waiting time.
Only make the amount of flax eggs that you need at any give time.
DO NOT quantify in bulk at all.
DON'T go over 3 "eggs". Recipes that call for more than 3 vegan eggs need to be revised and adapted with using other ingredients. Keep your usage within a maximum of 3.
For best results use for fairly simple recipes i.e cakes, muffins, pancakes etc.. pastries/quiches are a NO NO.
It's okay to use brown or golden flaxseed, both work just fine.
It's better and more nutritious to use whole flax and mill it using a coffee/spice grinder.
Be sure to stir your "egg(s)" before using/adding to a recipe.
DON'T use flax flour, only whole flax or flax meal as a secondary option.