Croissant Bread Pudding with Lemon Butter and Blueberries

It's an enormous feat to turn croissants into something better than they already are. That's why on National Croissant Day (January 30), I invite you pull out your limoncello, your lemon curd, your blueberries, your croissants, and a host of other ingredients, to make this bread pudding. Because limoncello makes croissant better!