First of all, let me say I have never had one. They are famous, apparently, and you must have one when you visit the VA Heathrow lounge -- which we will be doing next year. Sorry, I realize that this is a travel website and not a cocktail lounge/cooking website. I am thinking of serving to our guest this Thanksgiving as they arrive. I have spent too many hours trying to figure out the best way to make and serve for a group. I also posted this topic in the Airline Forum.
Now, my questions are for my traveling and drinking buddies -- even thought we have never met. 6 ingredients plus Prosecco. Figuring I will need about 7 ounces for each of the 29 champagne glass servings. I am figuring on 2 ounces of mix and 5 ounces or the Prosecco. I never found a recipe in ounces - all in ml.

17 ounces Bombay Sapphire Gin
17 ounces fresh lemon juice NOTE -- seems like a whole lot of lemon juice. Any experience?
6 3/4 ounces Cassis
6 3/4 ounces Framboise
6 3/4 ounces raspberry puree (strain seeds)
5 ounces simple syrup

From what I am reading, you make each cocktail by shaking with ice and straining the 2 ounces of premix into your champagne glass or otherwise and then then stir in the 5 ounces of Prosecco.
Any suggestions? Proportions sounds OK? Any changes to recipe? Do they taste good? Make mix a day ahead of time? Any reason you could not make two at a time as couples arrive? I am not a great or experienced bartender. However, I am pretty good at drinking wine.
I will ask forgiveness ahead of time from those Fodor's folks that are only interested in actual travel advice. I don't mean to highjack anything. Thanks!

I suggest you make one and decide if YOU think it "tastes good."

Thanks Dukey1. I also want the cocktail to have wide appeal by our varied guest. I may still do that but when you study the recipe, it would be very difficult to make 'one'. 1/10 of this - a 1/2 of that, etc.

Phil, you are going about this all wrong. Simply make the entire recipe, and drink all of it. By the time you finish you will know if the drink is perfect.

Or not give a s@#t.

I agree. When I was a student some fellow university would organise a cocktail. Nobody would now all the ingredients not even the proportions. The guys making it would never remember.

Can't offer much advice -,- only 'cocktail I prepare beforehand is sangria and I do several liters Then I add ice just when first guests arrive.

What iS an ounce btw ;-)

It is a couple days after Thanksgiving and................the Virgin Redheads were a big hit. We used Christmas wine glasses instead of champagne glasses.

The other day, I converted the 'party' recipe to one for my wife and me.

Here goes, for the premix (makes total of 4 VRs):

2 1/2 oz. Bombay Sapphire Gin
1 oz. Crème de Cassis
1 oz. Framboise Raspberry Liqueur
2 1/4 oz. freshly squeezed lemon juice
2/3 oz. simple syrup
1 oz. Raspberry Puree

then, obviously, shake 2 oz. (1/4 cup) premix over ice and strain into glass. Add the 4-5 oz. per drink of Prosecco.

NOTES: raspberry are a pain to juice (used some frozen and they were as good as fresh); vary the simple syrup based on personal taste and how tart the fresh raspberries are; my wife liked a greater proportion of the premix and I preferred the 2 oz. per cocktail

I know we will love the Virgin Atlantic Heathrow lounge. Our flight home leaves at 11 but we plan on getting to the lounge about 8. I want to have a nice breakfast (and compare Redheads) before heading home.

Enjoy!

is there no end to the things that I learn on fodors? I didn't even know that a Virgin redhead was a thing, let alone that I could drink one!

I note Philip that initially you'd been unclear about whether the amount of lemon juice [being the same as the amount of gin] was correct; in your recipe they are more or less the same. is that right? [I ask only in the interests of others - I can't stand gin].

<<I know we will love the Virgin Atlantic Heathrow lounge.>> The lounge is fabulous, all Eames and Arne Jacobsen chairs - be sure to leave enough time to try out the interactive virtual reality cocktail bar, it's a lot of fun.

Yes. The amount of gin and the amount of lemon juice is the same for the group recipe. I reduced slightly for the personal recipe.

Thanks for the heads up on the interactive bar. I will do some research before the trip.

Odin

Looks great. Would love to try, however, they say will end December 31st. Hopefully, that is marketing, and will be popular and long lasting. We won't be in the London lounge until next year.

The Heathrow Virgin lounge is very nice, you'll have a great time. I've never had a "virgin redhead", may try your recipe.

We flew Virgin upper class out of Miami about five weeks ago. The lounge there is shared and unfortunately nothing like the Heathrow or JFK lounges.