Dust 1 large piece of parchment paper with the sugar.
Add 1 to 2 drops of the food coloring to the marzipan and knead until the color is evenly distributed.
On the parchment, roll the marzipan into a 12-by-7-inch (30-by-18-cm) rectangle about ⅛ inch (3mm) thick. Using a large offset spatula, evenly spread 1