Obtainable by cooking all the dishes in Hot Cuisine Quest twice.
Note for old characters: You need to cook the 4 new dishes introduced in the Summer Update 2010 twice and cook the previous 10 again if you did that before the update in order to get this achievement.
Simple hams and bread merely make you laugh. You're the master of the extra-ordinaire, melter of cheese, fryer of bat wings and shaker of shakes. Delicious!