Whisks & Giggles

Not a Cosmopolitan!The Real Classic Cosmo Cocktail Recipe.

By Jen Gadus | Published December 11, 2024 Easy
Skill Level
5M
Total Time
1
Serving
Gin Lemon Vermouth Raspberry

Let’s clear something up: A Cosmopolitan (vodka, cranberry, lime) is not a Cosmo (gin, raspberry, lemon)!!! Not even close. The Cosmo cocktail is a pre-Prohibition masterpiece featuring gin, dry vermouth, fresh lemon juice, and raspberry syrup. It’s a sophisticated, tangy, lightly sweet drink that’s all about balance and elegance. If you’ve ever thought, “I’d enjoy a Clover Club but I don”t like raw egg,” the Cosmo is for you.

The Cosmo Cocktail: A Forgotten Gem

The Cosmo cocktail first appeared during the golden age of cocktails in the early 20th century, when gin was the reigning champion of spirits. Though its exact origins are unclear, it’s believed to have been crafted by bartenders experimenting with existing gin-based cocktails (like the Clover Club), celebrating the vibrant flavors of citrus and herbs. The Cosmo quickly became a favorite among those seeking an elegant yet approachable drink.

It’s not entirely clear why the Cosmo faded into obscurity while the Clover Club held its ground in the cocktail revival. Perhaps it was overshadowed by the rise of its namesake doppelgänger, the Cosmopolitan (ugh!). Regardless, this classic deserves a spot on your home bar rotation for its unique charm and historical importance.

What is a Cosmo vs. a Cosmopolitan, Exactly?

While the Cosmopolitan (vodka, cranberry, lime) gained fame in the 1980s, it is an entirely different drink that sadly, often overshadows the original Cosmo (gin, raspberry, lemon). While the Cosmopolitan gained fame during the 80s and 90s (it was so iconic that people would order it just to feel like a New Yorker!), its roots are thought to trace back to the 1930s and 40s. According to cocktail historians, the Cosmopolitan is essentially a tart twist on the Kamikaze, with cranberry juice stepping in to lighten things up.

Today, the Cosmo cocktail is a rediscovered gem for cocktail enthusiasts, offering a refreshing taste of history and a reminder of gin’s vibrant versatility. Bring this forgotten classic back to life and experience a cocktail that perfectly balances tart citrus, sweet raspberry, and herby gin ( + vermouth).

What is the Difference Between a Cosmo vs. a Clover Club?

The Clover Club leans creamy and lush, while the Cosmo stays zippy and refined—letting the botanicals of the gin and the brightness of the raspberry shine.

Note, our preferred version of a Clover Club incorporates vermouth, but we share other ways to make it, including the classic gin-only recipe.

Homemade Fruit Syrups: The Secret Trick to Elevating Your Home Bar.

Fruit syrups are a super easy (dare I say…almost lazy) way to add incredible depth of flavor to your drinks at home. Here s a simple guide to getting the most flavor out of your fruit by using the maceration method:

What Does “Macerate” Mean?

Macerating refers to the process of softening or breaking down food—in our case, fruits—by covering it in sugar, mashing it, then leaving it to “soak”. This process helps release the fruit’s natural flavors and juices without the need of adding additional liquids, hence no dilution. The technique is also used in cooking to prepare fruits for desserts, jams, or sauces, making them more flavorful and tender. In the context of cocktails, sometimes alcohol is used during maseration but we find it unessisary—sugar + time is all you really need.

How to Make Fruit Syrup—Detailed Steps

Macerating is a great last-minute trick to getting more flavor into your drink if you didn’t have a chance to make a fruit syrup ahead of time. But if you did plan ahead, macerating is your dirty-sounding little secret to creating the most flavorful fruit syrups you’ve ever had.

For our Cosmo recipe, we’ll be using raspberries, but you can use the same method with any fruit:

  1. Mise en place.
    Gather a medium pot, a medium whisk, 16 oz. of cane sugar, and 8 oz. of fresh, ripe fruit (2:1 ratio of sugar-to-fruit, by weight).
  2. Clean & prep the fruit:
    Wash and dry the fruit as much as you can without being obsessive. Remove any stems, pits, or peels, if needed. Chop larger fruits, like peaches or pineapple, into small pieces.
  3. Macerate.
    Place the fruit and sugar into the pot. Mash & stir the fruit and sugar together until all the fruit is coated. Cover the pot an let it sit for 1–2 hours at room temperature, stirring occasionally. The sugar will draw out the natural fruit juices, creating a syrupy mixture.
  4. Cook gently.
    This is where we need to decide on the consistency/type of syrup we want to make. a) for cocktails: for a thinner, simple syrup-like consistency, add 8 oz. of water (2:1:1 ratio of sugar-to-fruit-to-water);
    b) for food toppings: for a thicker, maple syrup-like consistency, add 4 oz. of water (2:1:0.5 ratio of sugar-to-fruit-to-water);
    Once you’ve added your desired amount of water, cook for about 5 minutes over medium-low heat while stirring occasionally to avoid scorching. Cook just until the sugar dissolves completely; avoid boiling to preserve the fresh fruit flavor.
  5. Strain & cool.
    Place a fine mesh strainer over a bowl and pour the mixture through it. Press the fruit gently into the strainer to extract as much liquid as you can, and discard the solids. They’ve done their job by giving us all of their delicious flavor!
  6. Fortify & bottle it up!
    After the syrup cools to room temperature (this is key!), add 1 oz. of vodka for every 8 oz of fruit you used and stir to combine—this gives your syrup a longer shelf-life but isn’t enough to cause any boozy flavors. Then, transfer your fortified syrup to a clean jar or bottle and store it in the fridge for up to a month. We love the OXO squeeze bottles for storing & dispensing our syrups!
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Tips for Next-Level Syrup:

The Last Drop

If the Clover Club is a lush, art deco couch, this Classic Cosmo is a sleek mid-century modern chair—different vibes, same timeless appeal. Just remember, raspberries—not cranberries—are non-negotiable (unless you’re trying to make me cry).

Recipe: How to Make the Best Cosmo Cocktail at Home

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Cosmo Cocktail Ingredients

Cosmo Cocktail Directions

  1. Mise en place: gather equipment & drink ingredients.
    Fill the larger side of your boston shaker about halfway full of ice. Set aside.
  2. Optional: prepare the garnish (critical to do first).
    If you’re garnishing, peel a section of the lemon rind before slicing it, being sure not to include too much of the white pith. Set aside.
  3. Add ingredients to shaker.
    Into the smaller side of your shaker, add gin, vermouth, syrup, and lemon juice.
  4. Shake.
    Assemble shaker with the smaller half on top, pouring liquids over the ice as you assemble. Shake until thoroughly chilled.
  5. Strain.
    Strain into your coupe glass.
  6. Optional: lemon twist.
    Twist the lemon peel into itself while holding it just above the glass, then squeeze the twisted rind once to release the essential oil into the drink. Slide the peel onto a skewer (or just drop it into the drink), place the skewer across the rim of the glass, and enjoy!

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Cosmo Cocktail FAQs

What is “key gin”?

Key gin is a modernized American-style take on gin that uses citrus to build its flavor profile, such as key lime and lemon peel.

Why use fresh fruit syrup for cocktails?

Using a homemade, fresh fruit syrup for your cocktails allows you full control over flavor and sweetness; you can adjust the intensity level by using different amounts of sugar:water:berries. It also gives you a better berry flavor intensity by using the sweetness of the berries in place of some of the sugar but still yielding the same sweetness level.


Learn how to make fresh fruit syrup

What is macerating?

Macerating is the act of soaking fruit in sugar—instead of adding water—in order to draw out its natural juices and enhance the flavor of your syrup, jam, or jelly.

What is a Boston shaker?

A Boston shaker is a two-piece cocktail shaker that creates its own create a vacuum-tight seal once closed, reducing the likelihood of leakage while shaking. Boston shakers have one larger tin, usually 28-oz capacity, and a smaller glass or metal tin with a 16–18 oz capacity. They tend to be the preferred style of shaker for professional bartenders, and we like Boston-style shakers because of their large internal capacity, helping to efficiently mix, chill, and aerate your cocktails.