
Crème de Cassis is a sweet, dark red liqueur made by macerating blackcurrants in alcohol and sweetening the result.
Another crème de cassis
Replaces it measure for measure, though sugar ranges from about 400 to 575 g per liter across brands.
The nearest other bottle. Pour the same amount and taste. The swap shows most where cassis is the main flavor, as in a Kir.
Blackcurrant syrup
Keeps the fruit without the alcohol and is up to twice as sweet. Use half to two-thirds of the measure, for a slightly less alcoholic drink.
Sugar keeps it from spoiling but does nothing to stop it oxidizing, and cassis oxidizes visibly: over a year an open bottle darkens from bright purple-red toward brown and the fresh blackcurrant gives way to something closer to jam. Keep it in the fridge once opened and buy the size the bar turns over.
Alaska No. 2
London dry gin