So, I haven't made my pink grapefruit ice cream yet, but I made Pink G sorbet with champagne today. Really simple and very yummy, even if it hasn't cooled, let alone frozen yet lol.

4 cups pink grapefruit juice
1 cup sugar
3/4 cup champagne (I used 220ml, because that's the size of the bottle I had, but it really could have done with less)

Pour 1 cup of juice into a non corrosive saucepan with the sugar and stir over medium heat until sugar is dissolved. Add rest of juice and champagne. Chill until chilled (!) and then freeze in ice cream maker or in freezer, beating or stirring when half frozen a few times.

Couldn't be easier.