Kosher butter substitute for baking (flavour and mouthfeel) I'm looking to find a pareve (non-dairy, non-meat) substitute for butter which lends a similar flavour and mouthfeel for baking. I would be using it to make something along the lines of a brioche (French, not the so-called American version).

Does anyone have any suggestions?
The classic substitute is margarine.

Most brands are vegan, which would meet your non-dairy /non-meat requirements.

As far as taste and mouthfeel goes, I suggest either trying out a few brands or checking some vegan blogs from your country or region, there is a difference between brands but some are reported to be remarkably close - whatever that means.