The Press Association reports
The 27-year-old restaurant owner was hired by Sir Alan on what she described was the businessman's "gut instinct" despite rival Kate Walsh being in a good position to win.
Yasmina triumphed after the final task which saw the women battle it out to create a new brand of chocolates which they had to pitch to a roomful of industry experts.
Kate and her team, which was made up of former contestants Debra Barr, Ben Clarke, Kimberley Davis and Rocky Andrews, designed a box of chocolates for couples. The concept was praised by Sir Alan but he said charging £13 for a box was not commercially viable.
Yasmina's team, made up of Howard Ebison, Phil Taylor, James McQuillan and Lorraine Tighe, created a brand called Cocoa Electric which was designed to 'shock' with flavours such as basil and strawberry, and chilli-flavoured popping candy.
Sir Alan told her the branding and pricing were excellent but that the taste - which even caused one model to spit out a chocolate after filming the advert - needed work.
After winning this year's series of the TV show, Yasmina said: "I don't feel like I've beaten Kate because I feel we both deserved that job, and we feel we just had different qualities and Sir Alan needed my qualities over hers.
"(Sir Alan) described it in a nutshell when he said, 'I can't put it into words why I chose Yasmina, it was just a gut instinct'."
Sir Alan revealed that Yasmina will be working in his Digital Display division supplying display units to be used in the health care industry.