Definitely sounds like one of Grant Howitt's mad one-page RPGs, looks like a fun one-shot!

You are a little goblin with a love of baking and big dreams. Dreams of joining the competitive baking circuit and taking home the grand prize: the golden cupcake and a lifetime supply of sprinkles. You’ve spent years perfecting your technique and studying recipes and you know you are ready. There is only one problem: the competition is only for humans.

Refusing to give up on your dream, you gather a group of your fellow baking enthusiasts and hatch a plan to enter the bake off: a human disguise. Over many hours you created the disguise and crafted a rock-solid identity for your human alias and you have just received word from bake off officials that you have been accepted into the competition! Together, you don the human disguise and make your way to the competition, knowing that you are going to win - by any means necessary.

The Great Goblin Bake Off is a prepless games about goblins infiltrating a baking competition for 1 GM and up to 5 players. It is played with 1d6 and two stats (GOBLIN and BAKER). Game text includes character creation tables for players and NPC and complication tables for the GM.