In a medium saucepan combine orange juice, zest, sugar, and water. Bring to a boil over medium/high heat, then reduce the heat to low and simmer until the sugar is completely dissolved and the mixture has a light syrup consistency. Remove from heat and allow to steep for about an hour. Strain the zest and store the syrup in a glass jar with a tight fitting lid. Makes about 2 1/2 cups of orange syrup

To a tall glass add quartered orange pieces. Muddle with a muddler or back of a wooden spoon until the orange releases its juice and fragrance. Add the simple syrup, followed by the ice. Give it a quick stir and top with seltzer.