This is my first post here at eGullet, but I figured you guys would be the ones to ask! I'm a big fan of sparkling wine cocktails, and I just made my first one out of the Death & Co cocktail book (Bitter French). In the recipe it just lists "champagne" without giving a quantity, and I feel like this is pretty common. But after reading all the careful discussion of various spirits and techniques in the book, it struck me as odd that they'd leave this so vague. Is there a standard amount of sparkling wine you're meant to add in these recipes? Maybe a certain level the flute should be filled to?
Thanks for your input!