Chunyan Koushu no Bishoku Gaikouroku

The one person entrusted to overcome the crisis, with the kingdom's survival at stake, is— the princess who cooks? Reigetsu, the emperor's younger sister, likes to cook in the kitchens of the imperial palace. On the day her country is defeated in war, she meets Fritz, the archduke leading the conquering army. Faced with the destruction of her country, Reigetsu invites Fritz to join her at the table to taste the food of the legendary chef "Chunyang" as a last desperate attempt at diplomacy.... The Chinese-style fantasy tale of gourmet food and politics is now adapted into a beautifully illustrated manga! (Source: Comic Meteor, translated)