I am going to be brewing a "Chocolate Peanut Stout" soon. Has any one tried to brew with peanut butter at all??
My biggest concerns are a negative effect on head retention because of the peanut oil and salt. I bought organic no salt peanut butter, but that doesn't take care of the oil.
I originally planned to add this at the end of the boil to ensure it mixed well, but someone told me that all the flavor will be eaten up in the primary fermentation. But if I add this for only the secondary fermentation than I fear the flavor won't take well. Does anyone have any good opinion or advice on when or how to add it??