FOR foodies stressed about preparing Christmas lunch, the message is clear - keep it simple.

That's the mantra this Christmas from popular 4 Ingredients Cookbook author Kim McCosker, who was in the Rose City at Big W to dish out the secrets to a simple festive feast on Friday.

Accompanied by her mother Jennette - a passionate cook and former Warwick local - Ms McCosker was spreading Christmas cheer as she met fans and shared her recipe for surviving the season.

"This Christmas get one or two dishes - a sweet one and a savoury one," she said.

"For a main get a smoked ham off the bone and glaze it with maple syrup.

"Just keep it simple this Christmas."

With her latest book 4 Ingredients - Celebrations out now, Ms McCosker is passionately trying to encourage more people into the kitchen over the festive season for easy, simple and delicious Christmas food.

"Each of my books has their own little personality and purpose," she said.

"This book is my 20th title - it's your go to entertainer, a one-stop shop.

"Everyone at some stage has a barbecue or has to take a plate somewhere - whether you're catering for 50 people or two."

Celebrations contains a number of festive food ideas from easy dip recipes to beautiful, big, slow-cooked curries and treats such as a three ingredient fruit cake and the super easy 'reindeer bark'.

Handing out Christmas treats to shoppers, proud mum Jennette said she enjoyed being back in the Rose City - a place she spent a lot of time growing up in.

"I taught her (Kim) everything she knows," she joked.

"We just love coming to Warwick."

It's been a whirlwind 2014 for Ms McCosker, releasing a number of cookbooks in the popular 4 Ingredients series.

Perhaps the closest to her heart was the Breast Cancer Foundation fundraising book, Cook 4 a Cure, which was released in September.

"I'm very pleased and proud to announce we've raised $45,000 for the National Breast Cancer Foundation," she said.

"We'll just keep selling it until every house in Australia has one."