Crake was working full-time as a dentist alongside taking part in for Wasps when she was known as up for her first England cap in opposition to Scotland within the 2023 Six Nations.
She moved to Trailfinders two seasons in the past, with the membership ending seventh within the desk final season.
“She’s a rather well revered participant who we’ve admired for a while from her Wasps days,” added Saracens director of rugby Alex Austerberry.
“She’s very bodily and impacts video games in very constructive methods therefore her England caps. She’s a participant we’re excited to work with and I am trying ahead to her bursting again onto the scene in a Sarries shirt.”
Saracens haven’t disclosed the size of Crake’s contract.