When it comes to cocktails, orange bitters are a key ingredient for adding a bright, citrusy flavor. Here are four recipes that showcase orange bitters in different ways.

The first recipe is a classic Old Fashioned. To make this drink, you’ll need bourbon, sugar, and orange bitters. In a mixing glass, combine the bourbon, sugar, and a few dashes of orange bitters. Fill the glass with ice and stir until the sugar is dissolved. Strain the drink into a glass …