50g dried magnolia petals (pak hup), soaked for 30 minutes, drained and set aside
Soak the bird's nest in two cups of boiling water for two to three hours. Drain off water. Add clean boiling water again and soak for another hour. Remove the fine feathers and soak in clear cold water for 15 minutes. Drain well.
Put bird´s nest, rock sugar and water into a double boiler. Cover and double boil for three hours over low flame. Add pak hup and continue to double boil for another 15-20 minutes. Serve in a tureen.
(Use fresh pak hup if these are available, as they are tastier. Add into the soup at the last 10 minutes.)