The smooth and crunchy battlelines have been drawn. This is a peanut butter fight for the ages! Em explores the weirdest peanut butter pairings to see if anything can surpass the ultimate combo of peanut butter and banana; tries some peanut butter hacks including one involving a McDonalds Cheeseburger; and re-creates a vintage peanut butter recipe from 1901. In the other corner, Ben looks into the peanut butter and jelly sandwiches links to (of course) military history; finds out if peanut butter really is banned in Russia; and gets to the bottom of exactly how Elvis liked his fried peanut butter-based sandwiches. 

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