Give this a try! Very nice - sweet and lightly syrupy, prominent but not overbearing passionfruit. The passion fruit liqueur (I used Chinola) on it's own is thick, sweet and a bit overwhelming - this cocktail extends the delicious passionfruit flavor while reducing the viscosity, dialing down the sweetness just a bit (but it is still candy sweet) and keeping the booziness. The aperitivo helps with the color a bit, but isn't enough to really move the flavor.
This cocktail retains nice chardonnay character, and I like the kick of pear, but I didn't care for the boozy direction the cognac takes the overall drink.
Very lively - maraschino notes dominate (no surprise), but pear eau-de-vie also peeks in as well. The chardonnay lenthens the drink, and helps bring out the cherry fruit a bit. A great way to liven up a bottle of chardonnay (or other dry white, I'm sure), especially if you appreciate maraschino.
An excellent recipe - but I am surprised at how many commentors enjoyed it with even a bit more sweetness (e.g. Lillet blanc for the white wine). I don't care for dry vermouth, so I no longer stock it, and keep bianco vermouth instead. The gin keeps this in the martini family, but the sweetness and floral notes from the elderflower liqueur, chardonnay and bianco vermouth add substantially to my enjoyment of the cocktail. Definitely recommend.