St Germain Elderflower Liqueur
Daniel at Providence's bar turned me onto this liqueur via his specialty cocktail which also includes gin, bitters and grapefruit juice with a splash of champagne. This pairs nicely with the grapefruit juice.
Just add tequila, margarita mix, and lime juice. Push a button, and you've got 16 margaritas in minutes! Great for parties. Can also be used to make any other type of smoothie. Vodka, orange juice, and ice, perhaps?
The packaging sold me on this one. Some wines I collect , just because they look good. This is one of them..