A YouTuber who travelled to Indonesia took on what is dubbed the "world's most dangerous drink" at a bar in Bali on Wednesday (July 3).

The notorious beverage, named the Flaming Waterfall Lamborghini, is a lethal concoction of coffee liqueur, Irish cream, sambuca and Blue Curacao.

It is then set on fire then poured down - in this case - a bottle atop a wine glass and any brave imbibers have to slurp up the cocktail with a straw at the bottom of the glass.

British YouTuber James Ware is not phased by the blue, incandescent flames and absolutely nails it in one go.

But after a short while the drink and its effects sink in. "I feel like a melted Madame Tussauds model," he says.

In the video, there's a sign in the bar that reads, "You will feel the burning sensation when you try drink Flaming Waterfall Lamborghini."

"The sign's not wrong," Ware concurs.

Youtuber James Ware takes on the world's most dangerous drink, the Flaming Waterfall Lamborghini at Tawe's Bar in Lembongan, Bali.