What you need:
1-cup food white sugar
storeage jar or salt shaker
Add 1 cup of white sugar to a zip top baggie. Add two drops of food coloring to the sugar. Seal the baggie. Work the sugar and coloring together until the two are combined.
Pour the sugar onto a cookie sheet, spread and leave to dry for 1 hour. Funnel into a salt shaker for sprinkling. Store in a zip top baggie or sealed glass jar.
P.S. - They make great holiday gifts too!