The 19-year-old spent the second half of last season on loan at Eva Olid’s side as the Gorgie Girls finished eighth in SWPL 1 and reached the semi-finals of the Scottish Cup. McAllister, along with team-mate Maria McAneny, wasn’t permitted to play in that match as it came against her parent club Celtic.
With her contract about to expire after seven years with the Hoops she has made the decision to travel back across the M8 to sign a pre-contract deal with the Jambos.
McAllister is the second signing announced on Wednesday afternoon after the club announced a deal for New Zealand international striker Katie Rood.
Hearts exit on the cards for Josh Ginnelly
Lee Johnson addresses Hearts claims that Hibs over-celebrated derby equaliser
Steve Kean reaction as Hibs B bow out of SPFL Trust Trophy and Paul Hanlon gets minutes under his belt
Lee Johnson open to more transfers but says Hibs have gone over budget after Martin Boyle arrival
Hearts B come up short against Buckie Thistle in SPFL Trust Trophy
The pair join Rangers duo Ciara Grant and Emma Brownlie in signing up ahead of the 2022/23 season, while Georgia Timms was also recruited from English side Lewes.