Here are a couple of links on annapUrNA stotram by Shri Adi Shankara.
from ambaa-l and from Sanskrit Docs.
अन्नपूर्णे सदापूर्णे शङ्करप्राणवल्लभे . ज्ञानवैराग्यसिद्ध्यर्थं भिक्षां देहि च पार्वति .. ११..
May the Goddess, who is eternally full/complete and bestower of anna, the nourishment to our life,
who is the beloved of ever auspicious Lord Shankara, as if she were his life herSelf/himSelf,
May bestow on the devotees with the eternal knowledge,
and the necessary detachment from the snares of the lower worlds.
May the daughter of the mountains lead us from unreal to real, from darkness to light and from death to immortality.