Leeds United drew 0-0 with Middlesbrough yesterday evening.
Cook started in midfield against Boro, with the Sky TV cameras broadcasting the match live from Elland Road.
And although Evans insists that Cook won’t be going anywhere, he wanted to make sure the 18-year-old announced his potential to a national audience.
"I said to him that Sam Byram sold himself with three games on the television," Evans explained. "I said to him before they game that we’re not going to sell you, but you can have Premier League managers all around the country opening their eyes and seeing a very talented youngster.
"I thought he was stunning in spells tonight."
Cook was heavily linked with Bournemouth throughout the transfer window in the Daily Mail, but Leeds rejected all offers.
The central midfielder has told the Yorkshire Evening Post that he is very happy at Elland Road currently, as he is receiving such regular football.
The England youth international has already racked up 65 Championship appears for the Whites, and he has earned a reputation as one of the finest talents in the Football League.
Leeds look set to face a fight to keep hold of Cook in the summer, but Evans says that his side have already rejected ‘huge money’ (HITC) for their prized academy graduate.