High Quality Content by WIKIPEDIA articles! Viennetta is an ice cream product made in Unilever factories and sold under the various Heartbrand logos around the world. It was launched first by Wall's in 1982 using a technique devised by Kevin Hillman, development manager at Wall's' Gloucester factory. The original Viennetta was a multi-layered product comprising layers of vanilla ice cream with sprayed on 'chocolate' layers. The layers of ice cream were extruded, one after another, onto trays sitting on a moving belt. The rate of extrusion was greater than the speed of the belt which caused a deliberate 'bunching' of the ice cream; each layer was extruded at a different speed to the previous layer. The final effect was akin to a series of waves rippling through the product. This visual aspect combined with the in-the-mouth contrast of the smooth ice cream covered in crisp 'chocolate' to give the product an instant appeal.

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