Transportation Security Administration's (TSA) decision to classify peanut butter as a liquid means passengers can only pack 3.4 oz. containers in their carry-on luggage Sabrina Weiss is the ...

I typically hesitate to suggest making peanut butter in blenders, but the Vitamix Ascent X5 is the exception. It's the best blender I've ever tried, and you should definitely make nut butters with it.