Slice the hot cross buns into four or five slices and butter on one side. I thought I’d be lucky to get three slices but four or five can be easily accomplished with a little perseverance. If you want you can put marmalade on the buttered side too for an extra citrusy zing. Put the buttered slices into an oven proof dish.
Whisk together the egg, egg yolks and sugar with until well combined. Empty the condensed milk into a saucepan and add two tbsp milk. Heat gently until almost simmering and then pour into the egg mixture whisking all the time. If you’re particularly exuberant with the whisking and subsequent calorie burning it would be rude not to reward yourself with extra pudding. Pour the custard over the bread and leave to soak in for a few minutes.If the pudding is looking a bit parched and there’s not a drop of custard visible, pour over a little extra warmed milk. This will depend on the size of the hot cross buns you use. Put a few small knobs of butter on top of the pudding.