Pickford was asked to return to Wearside by his parent club late last week to provide cover for injury worry Keiren Westwood after the Republic of Ireland keeper was forced off during the Barclays Premier League game at Hull.
While the Black Cats fell short of formally recalling the 19-year-old academy product, Pickford did train with Gus Poyet's first-team squad and missed Burton's FA Cup first-round victory over Hereford on Sunday.
He is now back at Albion as they prepare the their League Two fixture at Dagenham & Redbridge at the weekend, where Pickford is expected to replace Dean Lyness between the posts.
"Jordan wasn't actually officially recalled by Sunderland," said Burton boss Gary Rowett. "They just called him back to training because Keiren Westwood was injured.
"They needed him to train with the first-team last week and now he's back."
Pickford has made 12 appearances for Albion so far this season.