This is an unmissable achievement.
As you advance on the Inquisitor quest line, he will ask you to liven up witch burnings by setting up a stall.
You will need to brew 10 gold star Beer and make 5 gold star Burgers.
10x gold star Mug of Beer = 50x Water + 2x Hops + 15x Wheat (Brewing stand or Zombie bewery)
4x gold star Burger = 4x Baked meat + 2x Bread + 1x gold star Onion (Cooking table)