The chef, 25, faced a tough challenge beating fellow finalists Bart and Santosh for the trophy and the title.
During what has been described as a “punishing” and “difficult” final week for them, all three have gone out of their way to impress with their final menus.
But it was Alex who impressed the judges the most, and he was then crowned the show’s new winner.
It might have seemed like a close call, but pundits Marcus Wareing, Monica Galetti and Gregg Wallace were confident the good chef had won.
Speaking of his victory, the champion said he was “proud” as he was praised for his incredible dishes.
He said: “It was the best feeling I have ever had in my life. To come away with the trophy is incredible. I’m so proud. ”
Greg said of the moment: “He has a feeling of fun our Alex, and when he brings a little drama to it, he hits notes of absolute brilliance.
“He combines good food with style and drama and he ticks a lot of the boxes when it comes to great fine dining. ”
All of the finalists faced pressures and challenges during their last meals.
One of the biggest challenges was to have them finish a three-course meal of their choice in three hours and 15 minutes.
Marcus called Alex a genius for his meal, as he started off with a scallop ceviche with marinated artichoke and pear tartare, yogurt mousse, parsley powder and crispy capers finished with an oil of cress.
Alex chose for his main pan-seared trout, with parsnip crisps, parsnip coleslaw, roasted parsnip, parsley gel and parsnip puree, finished with a creamy mussel and caviar sauce, served with a mini tart of fish with potatoes garnished with caviar and parsley powder.
Finally, his last dish on his winning menu was a white chocolate and passion fruit dome, with passion fruit pearls, a prosecco sorbet on a base of feuilletine and dark chocolate served with a fruit cocktail of passion fruit and party powdered passion fruit poppers.