Killer Utah mom Kouri Richins was snapped blankly staring in a fresh mugshot taken at her new prison digs where she was sentenced to life last week for fatally poisoning her husband.

Richins, who notoriously wrote a children’s grief book after murdering her sons’ dad, Eric Richins, was photographed with her hair down and fresh-faced after she was transferred to Utah State Correctional Facility where she’s slated to spend the rest of her life.

The mom of three is currently at the facility’s intake center after she was moved from the jail where she spent the past three years awaiting trial and sentencing, according to a spokesman with the Department of Corrections.

Judge Richard Mrazik threw the book at Richins – who won’t have the possibility of getting out on parole – after her three young sons said they were terrified of her and never wanted her to be free.

Richins, 35, was convicted by a jury in March of lacing Eric’s Moscow Mule cocktail with five times the lethal dose of fentanyl to cash in on his $4 million estate.

Prosecutors claimed Richins – a failed home flipper – was seeking to wipe out her real estate company’s debts and run away with her handyman lover.