Oh, just a standard bread pudding recipe. The "and butter" had me wondering about it. That recipe sounded fabulous except currants are hard to find here.Oh yes, rich, warming and definitely comfort food. There are many recipes and variations, but basically it's slices of buttered bread baked in a custard. Yes I know that doesn't sound promising, but with quality ingrediants it is absolute bliss. Example below.
http://www.deliaonline.com/recipes/collections/hot-puddings/rich-bread-and-butter-pudding
I tend to make it with leftover pastries.