Squeeze the oranges and lemons to extract fresh juice. Measure out 2 cups of orange juice and 1 cup of lemon juice.

In a small saucepan, combine equal parts sugar and water (about 1 cup of each). Heat over medium heat until the sugar is dissolved. Allow it to cool, then refrigerate. Alternatively, you can use store-bought simple syrup.

In a cocktail shaker, add the rosemary sprigs and simple syrup. Use a muddler or wooden spoon to gently crush the rosemary, releasing its oils and flavor.

Add the fresh orange juice and lemon juice to the shaker with the muddled rosemary. Fill the shaker with ice and shake vigorously for about 15-20 seconds to mix well and chill the ingredients.

If desired, strain the mixture into glasses filled with ice to remove the rosemary leaves. Divide the mixture evenly between the four glasses.

Top each glass with sparkling water, stirring gently to combine.

For an extra touch, garnish each spritz with a sprig of rosemary and a slice of citrus.

Customize the sweetness by adjusting the amount of simple syrup or adding more sparkling water for a lighter beverage.

Enjoy chilled! This spritz can also be made in larger quantities by multiplying the ingredient amounts, making it perfect for parties.