The "piaffe" is a signature move where the horse jogs on the spot, while there are also the "flying changes" -- where it skips on alternate legs.
Following two controlled rounds, where competitors are marked out of 10 and awarded a percentage score, they then go on to perform a freestyle routine.
Riding alongside her mentor Hester and Laura Bechtolsheimer -- granddaughter of a German billionaire -- it was a dream come true.
With 23,000 people packed inside the arena and the world watching on, Dujardin delivered in style, becoming the new Olympic score record-holder with 83.286%.
"We had high expectations to deliver that gold medal," she revealed.
"Everybody expected us to win it, we had such a strong team. But you know at the end of the day they are horses.
"You never know what can happen. And I think it probably put pressure on us a little bit more that everybody expected that.
"But I'm the sort of person, I don't think of things like that. I just do my best. And that's what I did."
The victory of the British team reverberated around the world as it finally broke the German stranglehold on the sport.
But for Dujardin there was still work to do.
"Going into the individual, I honestly was going to be absolutely delighted with any medal," she said.
"I wasn't even thinking of getting the gold. I was thinking any medal would be amazing.
"And you know, I went in there, and Adelinde Cornelissen had just come out with a huge score of 88%.
"They announced that just before I was going in. So I heard that as I was going down."
The Dutch rider's score had left Dujardin requiring an Olympic record to claim top spot, but that didn't faze the home favorite, who was the final competitor to perform.
"I went in there and I thought, 'Do you know what, I can do this, I know I can do this,' " she said.
"And I went in there and I can't even tell you how it felt. It was just indescribable."
Sitting on her beloved Valegro, Dujardin had the horse dancing majestically to the sounds of "Land of Hope and Glory," "The Great Escape" and the chimes of London's iconic Big Ben.
The beautifully artistic routine appeared to compensate for any technical deficiencies as she wowed the judges.
'A dream come true'
"The moment I finished my test it was like uproar," she recalled. "It was like everybody screaming, shouting and standing. It was unbelievable.
"And I didn't know I'd won. I looked over and there was this lady hanging over the stadium, and she said, 'You've done it! You've done it!'
"And I'm looking, and then I heard the crowd just go crazy. And then I realized I'd actually got the individual gold. And for me that was just unbelievable.
"To think in 18 months what I had achieved and come away with. Just to be at the Olympics in your home ground anyway was a huge achievement for me.