Egg YOLK replacement? I am making an old family recipe for Easter Bread, but I would like to make a vegan version of it for a friend. 

The non vegan ingredients that the recipe calls for are:

milk (substituting with almond milk)

butter (substituting with Earth Balance)

3 egg yolks

Help!! I can not think or find a good alternative to just 3 egg yolks. I am questioning the consistency of a lot of the suggestions I have found online.

Thank you in advance for all suggestions and ideas!
In an article I with a very quick google search found here, it seems that you can


  blend 1 tablespoon of flax or chia seeds with 3 tablespoons of water until mixture is thick and creamy.


However, I suspect that this would add a gritty texture that would be unpleasant in easter sweet breads. You would probably find that a full-fat yogurt is a good alternative, having both protein and fats.

I also found this article, which uses chickpea flour, flour (wheat, rice, sorghum), water and oil.