• Sift the sugar into a bowl, then add the vanilla extract.
• Gradually stir in the hot water until the mixture is the consistency of thick cream.
• Cover each brownie with icing.

Step 2:

• Make a second batch of icing, this time adding a few drops each of red and yellow food coloring until the icing is orange.
• Put the icing into a piping bag (if you don't have a piping bag, you can put the icing into a plastic bag and cut a very small hole in the bottom corner).
• To make a cobweb design: make fine, concentric circles with the colored icing starting from the center and working outwards.
• Using a toothpick, pull the colored icing from the center to the outside edge, dividing the brownie into quarters then repeat to divide into eights.