Prince Harry proposed to Meghan Markle during a cosy night in over a roast chicken.
In their first joint television interview, the happy couple revealed how Harry got down on one knee to pop the question and how Markle could not wait to say "yes".
The couple said they were enjoying "a cosy night" at home in his cottage in the grounds of Kensington Palace earlier this month -- "trying to roast a chicken" -- when he got down on one knee.
"She didn't even let me finish, she said, 'can I say yes? can I say yes?' and then there were hugs," Harry said in the couple's first interview since the announcement of their engagement earlier Monday.
Ms Markle is a 36-year-old actress, born in Los Angeles, and is well known for her role as Rachel Zane in the popular US drama 'Suits'.
She's set to become the first American to marry into the Royal family.
She was born to a mother of African-American heritage and a father of white heritage and has sent social media users into a frenzy with the prospect of a mixed-race princess.
Markle showed off her three-stone engagement ring set in yellow gold, which features a diamond from Botswana and two other gems from the collection of his mother, Diana, who died in a car crash in 1997.
“It’s beautiful, and he designed it. It’s incredible ... obviously not being able to meet his mum, it’s so important to me to know that she’s a part of this with us,” Markle said, turning to Harry as she spoke about the ring.
“It’s incredibly special to be able to have this, which sort of links where you come from, and Botswana, which is important to us, it’s perfect.”
They said the rest of the royals had been very supportive -- and revealed Queen Elizabeth II's beloved corgis had immediately warmed to Markle, lying on her feet while they had tea.
Harry said he thought his late mother Diana, too, would have been "best friends" with Markle, adding: "They'd be thick as thieves, without question. I think she would be over the moon."
Harry admitted he was nervous about bringing Markle into the royal family, given the pressures it entails and his mother's own difficulties in the role.
Harry has previously spoken of his own struggles with his royal role, and his desire to share the responsibility.
In his younger days, Harry regularly hit the headlines for his partying and his outspoken criticism of the media.
He spent 10 years in the British army, serving two tours of duty in Afghanistan, but in recent years has focused on charity work, notably with veterans.
Markle is also an active campaigner focusing on women's rights.
"Guys, a [sic] American Black Woman is bout [sic] to be a Princess. No one can touch my joy today," one Twitter user wrote.
While British pop singer Leona Lewis was delighted to see a mixed-race princess.
"So happy to see a mixed race princess to be [Royal]," Ms Lewis wrote.
"Congrats Harry & @meghanmarkle such a beautiful couple, a real representation of our Great Britain today. Many happy returns @RoyalFamily," she added.
Wellwishers gathered outside Buckingham Palace on Monday, including John Egan, 72, who said: "It is good for the country.
"The royal family is too tight, too controlled. The older ones exist in the last century. They really need to modernise."
Prime Minister Theresa May offered her "warmest congratulations".
