Two sausages are sitting in a frying pan. One looks over to the other and says, "Is it just me, or is it getting hot in here?" The other sausage looks back and says, "AHHH! IT'S A TALKING SAUSAGE!"
It's an anti-joke. Instead of doing a typical setup-payoff, the setup is that it uses the format of a joke, but then subverts the expectation by then having the "characters" make the most basic observations/actions.
The full joke adds that the other muffin says "a talking muffin" after the scream,but I kinda like this version better because it's an antijoke this way.