The TV presenter and cookbook author took to Instagram to announce the arrival of their newborn daughter, captioning: 'Hello world. Our baby girl Charlie Grace has arrived. We're all so in love.'
Her fans flooded the post with congratulatory messages on the safe arrival of their daughter.
MasterChef alum Justine Schofield wrote: 'Congratulations Maz' and Adam Liaw added: 'CONGRATULATIONS!!! That hair!!!'
Studio 10’s Sarah Harris added: 'Gorgeous! Congrats lady xx'
Marion rose to fame on the second season of MasterChef. She was a fan favourite from early on in the season and her elimination shocked the country.
The 35-year-old has gone on to author two cookbooks, starred in her own television show, Marion’s Thailand and launched a range of meal kits and food products.
Congratulations to the new family of three!