Kuchnio emerged victorious from the final two rounds of the catering firm’s annual competition held at the Unilever’s Chefmanship Centre in Leatherhead earlier this month.
The semi-final and final featured 11 representatives from ISS Defence, Education, Healthcare and Food & Hospitality.
Miles Ludlow (RAF Wittering), John Grantham and Bart Waskiewicz (both Food & Hospitality) contested the final along with Kuchnio.
The four were allowed 20 minutes to prepare their stations followed by 90 minutes to prepare a two-course menu.
Kuchnio won over the judges with her main course of pan-seared sea bass, served on a bed of aubergine with mushrooms, green beans and tomatoes, and her dessert of white chocolate risotto, served with caramelised chocolate, apricots, blueberry coulis and ginger crumb.
As a prize, she won a Michelin starred dinner for two, overnight stay and breakfast at Le Manoir aux Quat’ Saisons in Oxfordshire, along with a personalised trophy.
She also won a five-course dinner tasting menu for two at Gordon Ramsay's Maze after impressing with her hygiene standards.
Ludlow, who finished runner-up, won an eight course Michelin taster menu for two at The Ametsa, Belgravia, while the other finalists were awarded a spa treatment and afternoon tea for two.