He was filmed at Escobar’s tomb near Medellin emptying a bag of white powder on to the stone and rolling up a five dollar note.
After leaning down and snorting, he turns to the camera grinning and says: “I’m Gordon Ramsay, mate,” referring to the TV chef’s documentary on cocaine.
Steven claims the video was shot by a hitman for Escobar’s Medellin Cartel after they met in a local bar.
He said: “Colombia is the most corrupt place I’ve ever been to. Buying cocaine is cheaper than buying a Mars bar there.
“I was in a bar in Medellin when the news flashed up on the TV of me doing the cocaine. All the locals were going crazy so I joined in slagging off the guy on TV because I didn’t want them to know it was me.
“I went home, shaved to change my appearance and went to the mountains outside Medellin to hide. As soon as I could I went to Cartegena and hid.
“Then I went to the capital, Bogota, but the police found me.
“They gave me a paper with a five-year ban on and I was taken to the airport and told not to come back.
“If I wasn’t banned I would definitely have gone back to see my children. But I knew when I got on the plane I was lucky to be alive.
“I regret what I did so much and I want to apologise to the people of Colombia.”
Escobar, known as the King of Cocaine or El Patron, was 44 when police shot him dead at his HQ in Medellin in 1993.
By the late 1980s he had a £21billion fortune and was supplying 80 per cent of cocaine in the US.
Some guides sell cocaine tours to the grave and let tourists sample the drug.
Escobar’s career inspired the Netflix drama Narcos about the Colombian drug trade in the 1980s.