Luca Stephenson and Terence Miles were also on the mark as Marc Bridge-Wilkinson's side turned on the style.
Cannonier, who hit a double strike in last weekend's opening win over Stoke City, fired the Reds in front inside the opening 11 minutes.
Stephenson doubled the advantage just past the half hour mark before Cannonier completed his hat-trick just past the hour mark with two quickfire efforts.
Miles made it 5-0 on 74 minutes to complete a memorable day for the young Reds.
Reflecting on the win, Bridge-Wilkinson told Liverpoolfc.com: "It was a great team performance and I was really happy with the boys.