are silicone bundt pans good?
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.