But I changed that recipe, substituting Blue Curacao for the Maraschino Liqueur. And by adding it slowly down the sides, I got this effect:
That's a dark sour cherry at the bottom.
I call my new drink, "The Witch's Eyeball"......mainly because the other key ingredient is Strega which has a long and famous association with witches.
Here's a standard view.
It tastes pretty good, though it is a potent brew having no non-alcoholic ingredient besides the cherry. If you want to make your own here's how:
Add equal parts of gin from the freezer and Strega into a medium martini glass. Add a dark sour cherry that has been rinsed off in water to the bottom of the glass. Now, using a teaspoon, gently drizzle Blue Curacao down 5 sides of the glass so that it leaves a trail and pools ever so slightly around the cherry. Serve promptly without agitating the contents and thus ruining your 'eye' before your guest can see it.