So if a minotaur is defeated with tartar sauce, they can't eat tartar sauce
BUT a minotaur can eat a big mac despite having a very similar sauce.
This means that the tartar sauce is not the minotaur's weakness, but what is in it.
tartar sauce: Mayonnaise, Dill, Onions, Relish, Capers.
big mac sauce: Mayonnaise, Dill, Onions, Relish.
And now we know that similar to how vampires can't have garlic, minotaurs can't have capers.