The Affair of the Sausages (1522) is the event that sparks the Reformation in Zürich.

Ulrich Zwingli, pastor of Grossmünster in Zurich, Switzerland, spearheads the event by publicly speaking in favor of eating sausage during the Lenten fast.

Zwingli defends this action in a sermon called Von Erkiesen und Freiheit der Speisen (Regarding the Choice and Freedom of Foods), in which he argues, from the basis of Martin Luther's doctrine of sola scriptura, that "Christians are free to fast or not to fast because the Bible does not prohibit the eating of meat during Lent."