"She looks like me when she's smiling and when she's not smiling, she's 100 percent her," Christie said of her model offspring. "She just has her own look. She's her own category."
Christie gave ET a tour of the 20-acre home, worth nearly $30 million, where her three children grew up in. The walls no longer ring with the laughter of little ones, but Christie is still keeping busy with her new line of Prosecco, called Bellissima, and all of her kids have been able to weigh in on the product.
"Sailor's not really old enough, but she gets to sip it at home, and she loves it," Brinkley shared.
Christie has had a passion for mixing drinks since the '80s and even kept a blender in her bag when she used to travel with ex-husband Billy Joel. The practice came in handy one night for a concert at Wembley Stadium in London.
"We go and visit with Prince Andrew, right? And he said, 'I've never been to a rock 'n' roll show before,' and I said, 'We got to go to Wembley! Let's go!'" Christie recalled. "So we all pile in the car and we end up taking the prince to his first rock 'n' roll show. He seemed a little bit nervous, so I just popped my blender out of my purse, and said 'I just happen to have a blender, and I will whip you up a margarita.'"