Excuse Me, Is That Bacon In Your Cocktail?

• 

  Hide caption

  Josh Berner of Ripple, a bar and restaurant in Washington, D.C., pours a bottle of gin into a pot over a very low flame.

  Karen Castillo Farfán/NPR

• 

  Hide caption

  Then he adds 2 ounces of oil, in this case, toasted sesame oil.

  Karen Castillo Farfán/NPR

• 

  Hide caption

  Berner stirs the oil into the simmering gin, and cooks and stirs for about 20 minutes.

  Karen Castillo Farfán/NPR

• 

  Hide caption

  Once the alcohol-fat mixture is blended, Berner lets it cool to room temperature. Then he pours it into a freezer-safe container and freezes it overnight to allow the fat to rise to the surface.

  Karen Castillo Farfán/NPR

• 

  Hide caption

  The next day, Berner pulls the mixture from the freezer and strains it in a sieve lined with cheesecloth, leaving the fat behind.

  Karen Castillo Farfán/NPR

• 

  Hide caption

  He pours the mixture into a serving bottle.

  Karen Castillo Farfán/NPR

• 

  Hide caption

  When he's ready to serve, Berner pours the alcohol into a cocktail shaker with ice and the other ingredients.

  Karen Castillo Farfán/NPR

• 

  Karen Castillo Farfán/NPR

• 

  Karen Castillo Farfán/NPR

• 

  Karen Castillo Farfán/NPR

The practice of imparting the flavor of something heavy into a lighter liquid is centuries old. Ancient Indian healers did it with botanicals, early Christian monks did it with bitters. But the process is getting new attention as part of the craze to put all things food into all things drink.

Enter the bacon-flavored cocktail, as explored by Josh Berner, the bar manager at Ripple in Washington, D.C. and other au courant mixologist-types in cities like New Orleans and New York.

Unlike the potentially dangerous liquid nitrogen drink, the fat-infused cocktail is actually something you can pull off at home. "Even my girlfriend, who doesn't cook, can pull it off," Berner says. (Sorry, girlfriend.)

What it takes to pull off a bacon-flavored mescal for your cocktail base â€" or an olive-oil flavored vodka or a sesame oil infused gin, for that matter, is pretty simple, as Berner shows us in the slide show above: A basic pot, a low flame, a steady stirring arm, a freezer, and some time and glassware. And yes, he does offer cocktail classes if you need to see it up close.

So how does it work? The magic happens when you heat the fat, says Kantha Shelke, food chemist and spokesperson for the Institute of Food Technologists. Fat contains lots of flavor molecules, but it takes a bit of prodding to release them. Remember that old Maillard reaction? "Heat volatilizes the aromatic compounds â€" warms them up and releases the fat matrix," she says.

Those flavor molecules dissolve into the alcohol when they're heated and stirred together, she says.

Once the fat is mixed with the alcohol, let it cool a bit, then pour it into a freezer-proof container. Freeze overnight, and the fat will rise to the surface, effectively trapping those volatile flavor compounds in the alcohol, Shelke says. Strain off the fat in the morning, and you've got your flavor-infused base.

Karen Castillo Farfán/NPR

Karen Castillo Farfán/NPR

The process gives the cocktail a slightly meaty taste and mouthfeel called umami â€" a flavor intense enough that a little bit will go a long way towards satisfaction, scientifically speaking.

So once you master your base, try your hand at mixing the alcohol with some other flavors that Berner is featuring on his menu right now.

United Colors of Basilton

1 oz. purple basil syrup (2 parts water, 1 part sugar, handful of purple basil, heated, then cooled to room temperature)

1 oz. light white wine

¼ oz. green chartreuse

1 ½ oz. olive-oil washed vodka

Combine ingredients with ice in a cocktail shaker. Stir, strain into chilled martini glass. Garnish with a candied lemon.

Chile Manteca y Dulce

5-10 drops citric acid solution

1 ½ oz. of cayenne pepper toasted pecan syrup

1 ½ oz. bacon-washed mescal (Berner uses Beneva)

Combine ingredients with ice in a cocktail shaker. Shake, strain into chilled coupe glass. Garnish with a pecan.

Play It Sam

1 oz. date reduction (poach dates in water with a little sugar, reduce)

1/4 oz. aquavit

1 ½ oz. sesame-washed gin

Combine ingredients with ice in a cocktail shaker. Shake, strain into rocks glass with ice. Garnish with a lemon twist.