Ikai no Himemiko wa Pâtissière  

One day, an apprentice pâtissière named Emi stumbled upon another world where malevolent beings roamed. Just when she was about to be attacked by a monster, a brave knight came to her rescue. In gratitude, Emi prepared some pudding for him. To her astonishment, it turned out that the desserts she created had the power to cleanse evil spirits! As word of this spread, a shrine dedicated to her was built and she gained recognition as the legendary purification princess.