The "Love Made Me Do It" singer and the former One Direction star are parents to 21-month-old son Bear.
Even though the couple parted ways last year (18), Cheryl has now shared that they saw each over the festive season and Liam even cooked a turkey for their meal on Christmas Day.
"There's no animosity whatsoever. In fact, Liam spent Christmas day with us," she told The Sun on Sunday. "He cooked the turkey and everything at our home. His family came on the 23rd, and then he was in the house before I woke up on Christmas Day."
She went on to explain that they had reunited in an effort to make the festivities special for Bear.
And Cheryl, who's currently on the judging panel of U.K. TV show "The Greatest Dancer", said her time with the 25-year-old and his family was "lovely".
Elsewhere in the chat, the former Girls Aloud singer confessed she was looking for love again after splitting from the singer in July, and is after a man who isn't in the public eye.
"I would 100 per cent date a shelf-stacker from (U.K. supermarket) Sainsbury's. What you do doesn't define you as a human being. Some people just don't get the break they want, while some people are happy working at Sainsbury's. It doesn't matter," the 35-year-old admitted.
The mother-of-one also shared the terrifying ordeal she's had after being bombarded with "nasty messages" by an alleged stalker.
Cheryl has been forced to step up security, and told The Sun on Sunday: "I've had the same person constantly sending me weird messages, and nasty things said. I have security now for big things as you just never know... Obviously, fame isn't always perfect."