While Sylvia Jeffreys has only just celebrated her son reaching the half-year mark, the mum-of-one is honing her baking skills in prep for Oscar’s first birthday.

And by the looks of Sylvia’s cake-making skills, she may just need the extra time in the kitchen.

Sharing her cake fail to Instagram stories, the Today Extra host showed off her hilarious attempt at creating the number one cake from the iconic Australian Women’s Weekly Children’s Birthday Cake Book.

The 34-year-old shared what the cake should look like by showing the recipe page from her copy of the birthday cake cookbook before showing off the final result of her version.

“Ok, so my #yourcake journey begins here. This was supposed to be my an easy warm up before attempting something more complex like the Choo Choo train,” Sylvia captioned the image of the cookbook spread.

“So this is where things start to go downhill. I didn’t have the correct sized baking tin. So I tried to wing it,” she then captions an image of two different sized cakes.

Sylvia’s desired outcome.

Oops. But, not bad for ‘winging it’!

Sylvia, who shares her son Oscar with husband, Peter Stefanovic, then unveils the finished “embarrassing attempt” at the cake and yes, ok, it’s not perfect.

“Absolute disaster. Stuffed up the cutting, ran out of icing,” Sylvia laughs. “The only way is up. Rubbish!”

Ok, it doesn’t look exactly like the one from the book.

On a positive note, Sylvia said the cake still tasted ‘good’ and in the end, that’s really what matters.

The final taste test: Winning!

Aside from honing her baking skills ahead of Oscar’s first birthday, there was another amazing reason why Sylvia is trying her hand at baking.

The mum-of-one is an ambassador Youngcare and she is taking part in the #YOURCAKE Challenge.

To mark its 15th birthday, Youngcare has joined forces with the Australian Women’s Weekly as the magazine celebrates the 40th birthday of its iconic birthday cake book.

The #YOURCAKE Challenge is simple; choose your favourite cake from the Australian Women’s Weekly Children’s Birthday Cake Book, then…bake and decorate to help a mate!

Bake: Choose your favourite cake from The Australian Women’s Weekly Children’s Birthday Cake Book.

Decorate: Create #YOURCAKE to the best of your abilities.  Even #cakefails are welcome!

Help a mate: Gather friends and family and fundraise for Youngcare to support the thousands of young Aussies with high care needs.

The #YOURCAKE Challenge runs from 29 August – 6 September. You can create your own fundraising page at www.yourcakechallenge.com.au and you can donate to Sylvia’s page here

And you can order your copy of the 40th birthday edition of the AWW birthday cake book here.