The Duchess of Sussex’s close friend and Royal Wedding make-up artist Daniel Martin shared the adorable throwback clip to mark her 37th birthday on Saturday.
In it the duchess’ fun and down-to-earth side is laid bare as she eats raspberries off each of her fingers.
She can be heard asking “Rready?” before collapsing in fits of giggles after Mr Martin reveals he is filming her.
After tucking into the fruit snack, she waves her bare fingers at the camera with her mouth still full.
Sharing the video, Mr Martin wrote on Instagram: “Happiest of birthdays my friend!!”
Mr Martin has known the former Suits actress since 2011.
He has previously told how he wasn’t sure how to behave around the new royal.
Mr Martin told the People: “I asked her ‘Do I bow to you? I don’t want to disrespect you, but I’ve known you for almost ten years. What’s up?’“
To which Meghan Markle started laughing and told him “I’m always going to be Meg”.
Mr Martin also opened up about the exciting moment Meghan asked him to do her make-up for her Royal Wedding to Prince Harry.
Speaking during an appearance on Good Morning America, he told how his old friend, turned royal, asked him to be part of her glam squad.
He said: “Meghan and I communicate a lot through text because I travel for work and because of the time difference between the both of us, it’s hard to get on the phone.
“So she sent me a text asking what I was doing the weekend of May 19th.
“I was like, ‘I may be in Cannes for the film festival but what’s up’ and she sent me the bride and groom emoji right back and I literally dropped my phone.
“Then she sent me the shhhh emoji back so I couldn’t let anyone know.
“I was like ‘OK yeah, whatever you need.’”