Citrus Sugar
½ cup sugar
1½ tsp. citrus peel, grated (1 lime, 1 lemon, 1 orange or part of a grapefruit)
In a small bowl, mix sugar with citrus peel, crushing with the back of a spoon to release flavor.
Serve, or seal airtight and store at room temperature until flavour fades, up to 1 month.