Fresh Grapefruit Radler (Shandy) Recipe

• 2 pounds ruby red grapefruits (about 3 medium)
• 150 grams (3/4 cup) sugar
• 3 ounces (90ml) fresh lemon juice from about 3 lemons
• 12 ounces cold sparkling water
• 9 ounces chilled beer (265ml), such as pilsner
• 6 ounces Fresh Grapefruit Soda (175ml)

1. : 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.)
2. 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.
3. 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.
4. Add beer and Grapefruit Soda to a 16-ounce pint glass. Serve immediately.

ruby red grapefruits, sugar, lemon juice, cold sparkling water, chilled beer, fresh grapefruit soda

Taken from www.seriouseats.com/recipes/2017/06/fresh-grapefruit-radler-shandy-beer-recipe.html (may not work)