If the urge for a Pimm's strikes you, it is ridiculously easy to make a DIY version with ingredients you probably already have at home. If you want to play with the flavor profile, add a little sherry to give it a sweeter touch or a little Campari to accentuate the bitterness. Add a little simple syrup and fresh herbs to play up the sweet, summery flavor or increase the amount of gin to up the alcohol content and juniper intensity.
Notes: Dry bitter orange peel is cheap and many homebrew supply and natural foods stores carry it. While it does make the homemade concoction more closely match a commercial Pimm's, it can easily be left out for the sake of convenience. If you plan to use all of your DIY Pimm's within a week or two, you can simply strain it through a fine-mesh sieve without the additional filtering, since any citrus debris won't be steeping long enough to noticeably affect the flavor. Cheesecloth-filtered homemade Pimm's will keep at room temperature for up to a year.
About the Author: Marcia Simmons is the author of DIY Cocktails: A Simple Guide to Creating Your Own Signature Drinks. She also shares cocktail recipes and tips on the DIY Cocktails blog and on Twitter @DIYCocktails.