Scientific name Bondarzewia berkeleyi. Anyone who has ever seen this giant parasitic/saprophytic mushroom may be interested in Michael Kuo’s description on Mushroom Expert, especially how it affects its host.
Although the Berkeley polypore can become bitter with age, when young like this one it has very tender tips. My friend Chef Seth at Echo Bistro in Knoxville uses the ones I give him to simmer up a wonderful mushroom stock. Maybe that is due to his last name, Simmerman. This is also true of the “black-staining polypore” we usually forage earlier in the summer.
Don’t pass these by.