Fancy, sure, but not difficult to achieve. Making caramel is as simple as cooking sugar and water over moderate heat, swirling the pan (avoid stirring) to dissolve the sugar and to color the mixture evenly. Just be sure to take it off the heat as soon as it is light golden. When adding the caramel to the pudding, do so gradually while whisking. The rest of the caramel is used to make the desired shapes on a piece of parchment, dripping it with a spoon.