Fresh Grapefruit Radler Shandy Recipe - ruby red grapefruits

Method

• : Bring grapefruits to room temperature, then roll firmly against the counter to soften their rinds. Halve or quarter and juice one grapefruit; set aside others for juicing later. Pour juice into a sealable container and refrigerate. Cut juiced grapefruit rind into 1-inch chunks. Toss with sugar in a large nonreactive mixing bowl, cover tightly with plastic, and let stand at room temperature, stirring once every 45 minutes or so, until sugar has completely dissolved, about 3 hours. (You can let the mixture stand up to 12 hours, if desired.)
• Measure reserved grapefruit juice and juice additional grapefruits to yield 10 ounces (1 1/4 cups) of fresh juice. Add to sugar mixture along with lemon juice and stir well, then strain through a nonreactive fine-mesh strainer or piece of cheesecloth into a glass or ceramic container. At this point, the concentrated grapefruit syrup can be refrigerated for up to 1 week.
• When ready to serve, add sparkling water to concentrated grapefruit syrup. Adjust to taste with additional sparkling water, grapefruit, or lemon juice; bear in mind that a tart soda tastes best when mixed with beer.
• Add beer and Grapefruit Soda to a 16-ounce pint glass. Serve immediately.