Step 1.
- Chill a flute glass in the freezer for a few minutes.
Step 2.
- Juice half a grapefruit into a measuring cup, straining out any seeds.
Step 3.
- Pour 2 ounces of grapefruit juice into the chilled flute.
Step 4.
- Top with 4 ounces of Prosecco.
Step 5.
- Gently stir to combine.
Step 6.
- Garnish with a twist of grapefruit peel.