Build a Better Burger Challenge on July 2, 2015 · Leave a Comment Calling all children! Can you make a better burger than Johnny? Johnny Pusztai is Nottingham’s premiere, award winning butcher, and he has put out a challenge to children coming to the Nottingham Food Festival to see if you can make a better burger than him!! I hope you can! So start practising, guys, because we are on your side – we want you to beat Johnny in the Build A Better Burger Challenge at the Nottingham Food Festival 2015!