Absinthe bitters are a house-made blend of bitters made at Employees Only bar in New York. To make them, combine the following ingredients in a resealable bottle. This will keep at room temperature indefinitely.

• 3/4 cup absinthe
• 1/8 cup Green Chartreuse
• 1/4 teaspoon Angostura bitters
• 1/4 teaspoon Peychaud's bitters
• 1/2 tablespoon Fee Brothers Mint bitters

These can be used to make an Employees Only Martinez. This may seem like a lot of work for one type of cocktail, but believe me, it’s worth it.