Image caption The dancing Tunnock's teacakes at the opening ceremony

Sales of Tunnock's teacakes have soared after they featured in the opening ceremony of the Commonwealth Games, a supermarket has said.

Customers have been stocking up on the sweet treat after giant dancing teacakes whirled around Celtic Park on Wednesday night.

Waitrose said in the 24 hours following the ceremony, sales of the chocolate-coated marshmallow snack rose by 62%.

Spokesman David Jones said: "The sudden demand isn't something we anticipated."

He added: "We usually expect to see people marking major sporting events with a barbecue or a beer with friends and family.

"We will certainly be stocking up on teacakes to meet customer demand.

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Fergus Loudon, operations director of Tunnock's, said they had no idea the ceremony would feature dancing teacakes, although they had given permission for the iconic image to be used.

He said: "We knew they were going to use an image of the teacakes but because the ceremony was a closely-guarded secret we didn't know to what extent they were being used.

"We were absolutely bowled over when we saw there were 30 large teacakes in the ceremony."

The company was founded by Thomas Tunnock in 1890 after he paid £80 for a shop in Uddingston, South Lanarkshire.

It operated only as bakers and purveyors of "quality flour confectionery" until the 1950s when it created the now well-loved caramel wafers, snowballs, caramel logs and teacakes.