French 56½ Cocktail

Cocktail recipes are classically presented in fluid ounces and measured with a jigger; we’ve listed liquid ingredients in both fluid ounces and tablespoon/teaspoon measurements. To make a batch of simple syrup, mix ¾ cup sugar, ¾ cup water, and 1 teaspoon vodka (optional) and let sit at room temperature, stirring occasionally, until dissolved. There’s no need to heat the water unless you’re in a hurry. The vodka improves the syrup’s shelf life. Simple syrup can be refrigerated for several months. Tartaric acid is the primary acid found in grapes and grape products such as wine. You can purchase it in powdered form from wine-making suppliers or by clicking here. Some wines undergo a process called malolactic fermentation, in which malic acid, which can be harsh-tasting, is converted to mellower lactic acid (the primary acid in dairy products). Thus, a blend of tartaric and lactic acids can emulate the acidity of such wines. You can purchase powdered lactic acid from homebrew suppliers or by clicking here.