It was later marketed with an extra walnut on top, and subsequently the walnut inside was removed to leave one walnut outside. The chocolate cone itself and the vanilla fondant filling have altered in recent years; the cone previously had a more pronounced tightly knit rough surface and the fondant was more dense.

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Originally the chocolate whips were hand made by workers who extruded chocolate from a piping bag onto a board, which generated the original ridged surface. An attempt was made to recreate the original surface appearance but with limited success, and it now has no function other than decoration.

When the whips switched to being hollow moulded instead, in the late 1970s, the original surface was recreated, although it now had no function other than decoration.They are also my favourite walnut to bake with: because they are so fresh they are sweet with a hint of spice.