The actor's character Sean Tully recently had an accident as he tried to recreate Betty's famous dish, dropping the recipe into the hotpot mixture.
Betty had entrusted the secret recipe to Sean so that the Rovers regulars could continue to enjoy the pub's signature meal.
Cotton told This Morning today (April 25): "It appeared to have perished, but that recipe is invincible and will be back. The recipe has gone into the hotpot for the moment, but it will be back and hopefully the recipe and Betty's legendary dish will continue.
"And it will always be Betty's hotpot, not Sean's. But Sean is the keeper of the hotpot."
In real life, Betty Driver - who played Betty for 42 years - passed away in October 2011 following a period of ill health.
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