Question: are silicone bundt pans good?
Answer: Silicone. Silicone is flexible and more or less nonstick (it's still wise to grease and flour), so for the most part, cakes release easily from the pan. But silicone is a heat insulator, which seemed to hinder leavening. ... Pros: Cakes release cleanly and look pretty; the pans are light, flexible, easy to clean.