Crumble the Christmas pudding into the egg and buttermilk mixture and break it up with a fork. Cut any large lumps.
Add the baking powder and flour and mix until combined but try not to over-mix.
Spoon the mixture into a greased or lined muffin tin, almost to the top.
Bake for approx 20-25 minutes until lightly browned and a skewer comes out clean
Video
Notes
You can use a pre-bought or homemade Christmas pudding for this - I use my lighter Christmas pudding recipe which we really enjoy (and I recommend!). Nutrition is, as always, approximate but even more so than usual here since the Christmas pudding used can vary.