Hunke studied systematic and comparative religious studies, philosophy, psychology and journalism, including under Martin Heidegger. She received her doctorate in 1941, studying under the racial theorist Ludwig Ferdinand Clauss.
After marrying a member of the SS in 1942, she lived in Tangier, then Spanish Morocco, where he was stationed, until 1944. Later, she was a freelance writer in Bonn. She may be best known for her 1960 work "Allahs Sonne über dem Abendland" ("Allah's sun over the Occident"), which has been translated into numerous languages. For this book she was honored by the Supreme Council for Islamic Affairs in Cairo, of which she became a member.
A critic of Christianity, she joined the Unitarians in the 1950s.