The pair, who were recently reunited on ITV2 reality show The Only Way Is Essex after lots of tears and drama, looked every inch the loved-up couple at his new venture, Charlie's Deli.
Wearing matching promotional T-shirts, the Essex lovebirds made it clear that they are very much back ON after their period of estrangement in Marbella.
When a video emerged of Ferne frolicking with a mystery man in Las Vegas, Charlie came close to ending their relationship before she managed to win him back. But all that now seems in the past.
Charlie's cousin Joey Essex was one of the first local celebrities to show his support at the launch in Brentwood, Essex on Saturday (28 June).
He later tweeted: "Got to say... I'm so proud of my cousin @charlessims_ .... Love you kuz... New local food is now @charlies_deli #Reem.
"Well done @charlessims_ and good luck with the new business mate CHARLIE'S DELI @charlies_deli #Brentwood."
Charlie's best mate Mario Falcone was also seen tucking in to a cheese and ham toastie at the new eaterie. TOWIE's alpha male has been temporarily suspended from filming amid drug allegations.
Half-sister Chloe also arrived at the deli with handsome boyfriend Elliott Wright on her arm, both of whom left the premises with takeaway drinks.
Fellow cast members including Jessica Wright and Ricky Rayment took to social media to tweet their support for Charlie.
Jessica wrote: "Congrats @charlessims_ on the deli just been in and it looks lovely! Gorgeous cakes! Well done @fernemccann & lovely mum gill too in kitchen!"
Meanwhile, Ricky said: "Congratulations to @charlessims_ opening @charlies_deli today! Wish him all the best looks amazing well done @fernemccann for helping also x"
Pregnant Billie Faiers joked: "Looking forward to checking out @charlies_deli... il be expecting to see @charlessims_ and @fernemccann in their aprons."
Hmmm, we're feeling hungry!
Would you travel to Essex to eat at Charlie Sims' deli? Tell us below!