Joel Mumbongo struck twice as the Clarets hit four for the first time this season to move to the top of the table.
Mace Goodridge also claimed his first goal in a Burnley shirt in a one-sided first half as the Clarets made it 17 games unbeaten in all competitions from the start of the season.
Blackburn Rovers are likely to provide a stiffer test of that record in Friday’s Premier League Cup encounter at Ewood Park.
But Burnley – who rested a number of players in readiness for the Group G showdown – did what they needed to climb back to the summit of the U23 Professional Development League’s northern group with a fifth league win.