Momofuku Milk Bar chef, cookbook author, and self-declared "real-live hummingbird" Christina Tosi was on Today this morning promoting the new Milk Bar Cookbook and making all kinds of chocolatey treats. Al Roker and Savannah Gutherie are totally smitten with Tosi and, in fact, jointly proposed. ("Are you ready to commit?" "Yes, this is it, absolutely.") Tosi agreed. Congratulations to all!