The Gunners responded to their recent poor results in the most clinical fashion - with Pierre-Emerick Aubameyang and the returning Mesut Ozil at the centre of the action - to see off Sean Dyche's men at the Emirates.
On Saturday, Aubameyang's brace inspired Unai Emery's side to a 3-1 win, with substitute Iwobi beating the offside trap to add the third in stoppage time.
The Nigeria international took to the social media to react to the victory, captioning celebratory scenes with Ozil: 'Early Christmas'
Early Christmas🎄 pic.twitter.com/BrK4oexPZI— Alexander Iwobi (@alexiwobi) December 22, 2018
Despite the win, Arsenal will spend Christmas outside the top four in fifth position, though they are levelled on points with fourth-placed Chelsea after Maurizio Sarri's side were beaten at home by Leicester City.