There is a basic unflavored simple syrup, used when making lemonade from fresh lemons, limes and other such items.
There are two ingredients in simple syrup:
1 cup sugar
1 cup water
Combine the sugar and water in a pot. Bring to a boil, stirring, until the sugar has dissolved. Remove from the heat and allow to cool.
Store in a clean jar in the refrigerator for up to a month.
Note: some recipes call for two cups of sugar to one cup of water. It makes a thicker syrup.