Toblerone going back to original shape

But price could rise to more than £3

The old 170g bars (back) and the newer 150g bars, which will now be changed to 200g (Reuters)

Toblerone bars will revert to their original shape nearly two years after chocolate-lovers were upset when the number of triangles was cut.

The gaps between the triangles were increased in 2016, as 400g bars were reduced to 360g, and 170g bars became 150g.

Maker Mondelez International said it was forced to make the move because of rising costs. It said it had the choice of changing the shape or raising the price but decided to change the shape to “keep the product affordable”.

The new 150g version, costing about £1, was likened to a bicycle rack, with wide gaps between “mountains”.

Shoppers mocked it, saying it looked more like Holland than the Swiss Alps.

Now the 150g bars will be replaced with 200g ones - weighing 33 per cent more - but sources say the price could rise by more than 200 per cent.

One told The Guardian the recommended retail price would be £3.09.

A Mondelez spokesman told the paper 100g and 360g size bars would still be available.