You can have them hot ? When first baked I take it. Only ever had them cold. When ? Well whenever, sometimes when in Wales, in the cafe, with a cup of coffee.
"She who must be obeyed" is Welsh born and bred(or is that bread?) and says that you can have them either warm or cold. Not hot mind, warm, with butter on. I find them a bit bland to be honest but love a slice of Bara Brith . Now that is a really nice "Welsh Cake" despite it being loosely speaking a bread. Flycatcher bread. Haha.