Jack Wilshere opened the scoring with a goal after truly brilliant interplay between him and Olivier Giroud. Mesut Ozil headed in the Gunners' second, and after Jonny Howson pulled a goal back for the Canaries, Aaron Ramsey sealed the victory with an absolutely astounding individual goal. Ozil added a fourth in the late stages.
Everything worked for Arsenal in their most cohesive and technically brilliant display of the season.
If they can carry this exceptional play into their midweek Champions League tie with Borussia Dortmund and beyond, they will be favorites for the trophies that have so eluded them in seasons past.
Here are six things we learned from the match.