2019 winner Larissa Takchi (now Larissa Dominello) penned: "Omg This is beautiful 😍."
"Life will never ever be the same again and that is the most wonderful , glorious & beautiful change ever, ever ❤️," added Mandy Hall who starred on the same 2019 series.
Fan favourite Poh Ling Yeow had arguably the best reaction though, writing: "Oh mah lord. Well done lady. Best choux bun u ever did bake 👏❤️💕."
A week ago, Emelia shared with fans that she had welcomed her new baby.
Taking to her Instagram Stories, the new mum revealed the first snap along with a heartwarming message.
"In love in a way I never knew was possible," Emelia sweetly captioned the photo.
Emelia announced her baby news back in December last year when she shared the first snap of her burgeoning bump.
"Excuse the toilet in the background but this baby is popping today.. Sous chef coming in June," she captioned her announcement.
Needless to say, her MasterChef family was overjoyed by the news.
"Omg Milsy! Biggest congrats on the choux bun in the oven," returning favourite Poh Ling Yeow commented.
"So bloody exciting! Bubba mills," Brendan Pang noted.
"SHUT UP THIS IS AMAZING CONGRATULATIONS," Rose Adam enthusiastically penned, along with several joyous emojis.
"OMG! Such happy news!! Congratulations on the little bun xx," added Courtney Roulston.