A total of 40 individuals will receive a personalised sleeve over a box of either Rice Krispies or Corn Flakes.
Each winners' name will be printed on the front of the cereal box, and it will be included in a Christmas poem on the back. The box will then be gift-wrapped in branded paper and delivered to their door.
To be in with a chance to win, members of the public are being asked to either tweet their favourite thing about Christmas along with the #FestiveFlakes hashtag, or include an answer to the question: "Which part of Christmas do you most look forward to?" in the comments section of a particular post on the brand’s Facebook page.
The competition is designed to promote the arrival of the brand’s Christmas cereal packs. Entries close at midnight tonight (26 November).
Kelloggs ran a personalised spoon offer earlier this year, where those who purchased three boxes of cereal and entered a code online were granted access to an online workshop.