Kate Wright from Cumbria spotted the huge banana in her fruit bowl after her husband bought the fruit from UK supermarket chain Morrisons.
Kate and her husband Harry decided to halve a banana one day when they discovered there were actually two fruits in one skin.
Kate told Metro: “I went to the fruit bowl on Saturday morning and picked out a banana for breakfast and, lo and behold, behind the main bananas was a double banana.
“It was like a chunky banana in two sections, all within one skin. It was a complete freak thing.
“I’d never seen anything like this in 49 years. I didn’t really want two at once, so I waited until Sunday lunch for our pudding and me and my husband had the double banana.
“I pulled it down and could see there were two separate bananas in the one skin with one stalk.
“Me and my husband had one each for lunch and it didn’t taste weird. It tasted like a completely normal banana. There was nothing unusual about it.
“Some people have said it’s lucky. People have said I should buy a lottery ticket but I’m not really a gambling person.
“I feel quite blessed it fell into my hands. I think it’s a really interesting find. It’s not something you come across.”
Twin bananas are a natural anomaly that occurs in around 5 per cent of banana bunches. However, they rarely make it to supermarket shelves.