The last of the blue drinks from the Savoy Cocktail Book (or at least the last of them with “blue” at the start of their name) is the Blue Train. It’s quite similar in construction to yesterday’s Blue Monday, but substitutes gin for vodka, alters the ratio of liquor to Cointreau from 3:1 to 2:1, and adds lemon juice.
1/4 lemon juice
Shake with ice, strain into a chilled cocktail glass.
I used 2 ounces of gin, and an ounce each of the other ingredients. As with the rest of these, I am once again not embluening this with the addition of “blue vegetable extract” or, in modern terms, blue food coloring. This one, in any case, certainly doesn’t need to punch up its visual appeal.
The lemon juice adds a nice opacity and a hint of pale yellow to give this drink a lemonade-like appearance. And that is the predominant flavor as well – like many gin/lemon juice cocktails, in fact. The Cointreau has enough sweetness to cut the acidity of the lemon juice perfectly. In fact, if this were any sweeter, say with the addition of some simple syrup, it would be too sweet, although as it is I would characterize it as a sour drink, in the way that a good lemonade is a sour drink. A cherry might go nicely in there, and would lend an arresting visual touch as well. This would be a hell of a drink in the waning hours of a hot summer afternoon. Can’t decide between a cocktail and a glass of lemonade? Drink this and you’ll get the best of both worlds. Four livers out of five.