Beloved celebrity chef shocks fans as they share adorable Christmas childhood snaps - but can YOU guess who it is?

One of Britain's most famous TV chefs shocked fans on Monday, as he shared throwback snaps of Christmas days in his childhood.

Still looking recognisable by his messy blonde hair, one sweet photo saw the restauranteur as a little boy, enjoying his new presents with his sister Anna-Marie.

The two youngsters could be seen playing in their pop up space tent and Wendy house, with a lit-up Christmas tree visible in the background.

While the second shot saw the pair well into their teenage years in front of roaring fireplace, bedecked with stockings and a holly garland.

The snap hinted at the star's future culinary career, as he beamed while unwrapping a coffee machine, with he and his sister in matching grey Gap jumpers.

Fans flooded the comments as they pointed out how similar the cookbook author and his sister looked to his son and daughter. 

But can you guess who it is?

It's Jamie Oliver!

The now 49-year-old Naked Chef reflected on how quickly the years had passed as he captioned the snaps: 'Check out what I've just found how cute were we!!! 

'Swipe to see a few years later when we were the same age as some of my kids are now. Bonkers how time flies x x x'.

And Jamie's mother and sister were quick to share their delight at the throwback photos, with Anna-Marie gushing: 'I remember that Wendy house I loved it! I had a little tea set inside! Happy Days!! I will miss you this year. @jamieoliver Merry Christmas xxxx'.

And their mother Sally added: 'Ha ha - LOVE this! The first picture was taken at about 3am, after we found you and Anna sitting on the step outside our bedroom, shaking with cold and excitement but too scared to go into the sitting room where Santa had been. Such happy memories.'

His followers couldn't help but comment on much young Jamie looked like his youngest child, eight-year-old River Rocket Blue Dallas, as well as the striking similarities of Anna-Marie to his daughter Daisy Boo Pamela, 21.

They wrote: 'You and River are doubles'; 'Oh wow Daisy looks so much like your sister x'; 'River looks just like you!'

'So cute! Gosh, River looks so much like you!'; What? Is that your sister?? She looks just like your daughter'.

'You look so much like river and your sister looks like your daughters. How lovely xx'; River looks so much like you!'; Your daughters look like your sister'.

Jamie and his wife Jools Oliver, 50, share five children together - with daughters Poppy Honey Rose, 22, and Petal Blossom Rainbow, 15, and son Buddy Bear Maurice, 14, as well as Daisy and River.

However, despite sharing a strong physical resemblance with his youngest, Jamie recently revealed that River doesn't share his pride of all his success as a chef.

He has attained global fame with his numerous television shows, cookbooks, and restaurants over the past three decades.

However, in an appearance on The Graham Norton Show this month, Jamie admitted his eight-year-old isn't too impressed with his career's trajectory.

He recalled: 'The other night River said, and I have no idea where it came from, "Daddy, do you possess a Michelin star?"

'I was like, "No, I don’t really like all that fancy food," and he shook his head and said, "You don’t like fancy food?"'

Jamie laughed and admitted: 'I actually felt like I hadn’t worked hard enough!'

However, while River may not be so keen on following in his father's footsteps, Jamie's other son Buddy has definitely inherited his culinary skills.

The teenager has often filmed his own cooking tutorials, which his dad has shared to his 10.5million Instagram followers and is even releasing his own cookbook. 

Jamie recently shared on Instagram: 'Buddy's been my shadow in the kitchen since he was tiny and he has always found cooking a real adventure,

'As a dad who cooks it's been such a joy to watch and be a part of his journey learning new skills and cooking new dishes.....just look at those pics of baby Buds!!!'

Discussing his cookbook, Buddy previously explained: 'None of [the recipes] are fancy or hard to do – you'll find things like easy breakfasts, meatballs, pizza and some sweet treats.

'I just hope people enjoy giving them a go.'

Jamie and his wife Jools first tied the knot almost 25 years ago in July 2000 and the couple renewed their vows last year in the Maldives alongside their children.

The chef admitted he was initially 'embarrassed' about the ceremony but ended up 'probably enjoying [the day] more than anyone' 

Speaking on the Newlyweds podcast he told hosts Jamie Laing and Sophie Habboo: 'We were going to renew our vows at 20 years and then Covid happened. 

'So, it was at 23 years. The girls were leaving for university and stuff, so it did feel like the nest was starting to break up. We'd never been on what you would call a posh holiday, so we went to the Maldives. 

'I was a bit embarrassed about the whole thing, if I'm really honest. I wasn't so into it until we got there, and then when we got there, I think I probably enjoyed it more than anyone. It was just so nice.' 

The couple went on to exchange vows for second time earlier this year in Las Vegas to mark their 24th anniversary.