1 cup sugar
1 cup water
In a saucepan, bring water and sugar to a boil. Reduce heat and whisk until the sugar is dissolved and the mixture thickens. Cool completely. Pour into a clean jar and cap tightly. Refrigerate and use as needed.
or try this variation
flavored simple syrup:
to the boiling water add citrus peel and zest (orange, tangerine, lime, lemon and blood orange are especially good) or 1 inch piece ginger cut into matchsticks or a cinnamon stick or any whole spices. Prepare as usual but strain out any solids before use.
Simple syrup is good to have on hand. I like to use in drinks, it dissolves well so you aren't left with sugar at the bottom of your glass. Excellent for use in homemade lemonade.