Simple syrup is available for purchase at most grocery and liquor stores. It is an ingredient in many mixed drink recipes, such as mojitos and daiquiris.
Simple syrup can be made in the home kitchen. As the name implies, the recipe is simple and involves only two ingredients: two parts sugar to one part water. The water is boiled, then the sugar is dissolved in the boiling water. The water is stirred constantly until the sugar is completely dissolved, then the pan is removed from the heat. Once it is completely cooled, it is placed in a container for storage. Because this syrup is rich, a smaller amount is necessary for drink recipes.