Veteran actress Dame Barbara sadly died at the age of 83 on December 10, bringing her lengthy battle with dementia to an end.
Appearing on Wednesday's Lorraine, the former soap star shared the special way she said goodbye to Babs, with many unable to attend her funeral due to Covid restrictions.
Chatting to host Lorraine Kelly, Tamzin admitted she'd donated to Barbara's charity, helping to fund further research into Alzheimer's.
She said: "If you wanted to send flowers you can send flowers, or you can donate."
Tamzin explained her family had donated, saying: "We can all donate to the Alzheimer's society."
Later, Barbara's husband Scott Mitchell texted in to give the full name of the charity in question, which is Just Giving Dame Barbara Windsor for Alzheimer's Research UK.
The beloved Peggy Mitchell star will be laid to rest this Friday, with her former co-star Ross Kemp giving a eulogy at the funeral.
Reflecting on Babs' legacy, Tamzin branded the Carry On star as an "inspiration," feeling privileged to have acted by her side on EastEnders.
Reminiscing with host Lorraine, she remembered Barbara as being "absolutely incredible in every way".
'If you were lucky enough to know her she was an inspiration as well," she added.
Tamzin also praised Babs' relationship with her husband, with the pair marrying in 2000, and Scott remaining by her side until her tragic death.
Branding their romance as "magical," Tamzin added they were "both such lovely people".
Lorraine airs on weekdays at 9am on ITV.