1. Combine sugar and 1/2 cup water in a small, heavy saucepan over high heat; cook until sugar dissolves, stirring as needed to dissolve sugar evenly (about 2 minutes). Cook another 8 minutes or until golden (do not stir). Remove from heat; cool slightly. Carefully stir in 1/4 cup hot water, half-and-half, and 1/2 teaspoon salt. Add cinnamon stick; cool to room temperature. Discard cinnamon stick. Divide sugar mixture between two sterilized (8-ounce) glass jars. Cover and refrigerate. Serve at room temperature or slightly warmed.