Steve Stone told his players to make this a one-off after the young Clarets were beaten by Stalybridge Celtic at Bower Fold.
The BetVictor League Premier Division outfit struck twice in the opening six minutes and then never relinquished their grip on the game to run out 3-1 friendly winners.
And Stone admitted his side had to learn the lessons of competing against a more powerful side with the bit between their teeth.
“That’s real football,” said the Under-23s’ boss.
“I spoke beforehand about respecting the opposition, in terms of they were going to give it everything they’ve got and put the ball in behind and challenge and make it difficult and scrap for everything.