When Sabrina has the cookies Mr. Kraft clasps his hands in front of him but in the next scene he is touching the cookies.
In the pilot, a big deal was made out of how witches are not allowed to time-travel to change the course of events. But now it turns out that freezing time and speeding up time, which basically amount to the same thing, are essential parts of the witch curriculum that Sabrina is expected to study, and may even come up in her wizardry test.