Welcome back to Behind the Bar & Beyond — Real Stories. Real Business. Real Growth. Last time we started with a king: the Manhattan. This time, we're going where the bar meets the kitchen — which, if you know me, is home turf. I was hired in as the first bartender at Rico's Bar and Grill in Traverse City, and I still do a little bit of everything there — behind the bar, on the floor, and in the kitchen prepping the food. Fat-washing is the technique that lives in both worlds: it's cooking, applied to bourbon.
WHAT IS FAT-WASHING?
Fat-washing is infusing a spirit with a flavorful fat, then removing the fat — leaving the flavor and a silky texture behind. The science is simple: alcohol dissolves fat-soluble flavor compounds, the same family of compounds that carries smoke, savoriness, and richness. So the bourbon keeps the soul of the bacon — the smoke, the salt-kissed savor, a rounder, almost velvet mouthfeel — without a drop of grease in the glass. The trick that makes it work is temperature: bourbon doesn't freeze at home-freezer temperatures, but fat does. Freeze the mixture, and the fat rises and hardens into a cap you can lift right off.
A QUICK HISTORY
Fat-washing hit the big time in 2007 at PDT (Please Don't Tell), the New York speakeasy, where bartender Don Lee created the Benton's Old Fashioned. Lee had eaten Benton's hickory-smoked bacon — famously, in a dish at Momofuku Ssäm Bar — and asked for the leftover bacon fat to experiment with. His inspiration was enfleurage, the old perfumer's technique of using fat to pull delicate aromas out of flowers. Lee credits Eben Freeman, whose brown-butter-washed rum pointed the way. The drink — bacon-washed bourbon, maple syrup, Angostura bitters, orange twist — became a modern classic, and fat-washing became a standard tool in the craft bartender's kit, later documented in depth by Dave Arnold in Liquid Intelligence.
WHAT YOU NEED
1 bottle (750 mL) bourbon, 90–100 proof — mid-shelf is the sweet spot; the original used Four Roses, and higher proof pulls more flavor from the fat.
About 1 lb thick-cut smoked bacon (hickory or applewood). Skip maple- or sugar-cured bacon — it muddies the flavor. A pound renders roughly 2–3 oz of clean fat, so you'll have your 1½ oz with some to spare.
A wide-mouth, freezer-safe container. Wide matters: a thin, wide fat cap lifts off cleanly, while a tall narrow jar traps it.
Fine-mesh strainer, cheesecloth, and coffee filters.
STEP 1 — RENDER THE BACON, LOW AND SLOW
Start the bacon in a cold skillet over medium-low heat and cook it gently, turning now and then. You're farming the fat, not chasing crispy edges — scorched fat turns the whole batch bitter. When the bacon is done, pour the hot fat through a fine-mesh strainer lined with cheesecloth so zero solids get through; any bits left behind will drag the flavor in the wrong direction. Eat the bacon. That's the prep cook's tax.
STEP 2 — COMBINE WARM
Pour the bourbon into your container, then add 1½ oz of the warm, liquid fat — warm like melted butter, roughly 100–130°F, not frying hot. Give it a good shake or stir. Right now it looks cloudy and wrong. That's right.
STEP 3 — LET IT STEEP
Seal it and leave it at room temperature for 4 hours — the original PDT spec — swirling it once or twice along the way. The alcohol is quietly dissolving the fat's smoke-and-savory flavor compounds. Want it bolder? You can steep it overnight, but know that longer steeping leans more savory and gamey. And if 1½ oz sounds light, Dave Arnold's Liquid Intelligence goes up to about 4 oz of fat per bottle for strong flavors like smoked bacon — that's for people who want the bacon loud. Start at 1½ oz; you can always go bigger on batch two.
STEP 4 — FREEZE IT SOLID
Into the freezer for at least 2 hours, overnight if you can. The bourbon won't freeze; the fat will, rising into a solid cap on top.
STEP 5 — DEFAT AND STRAIN TWICE
Lift the cap off — or poke a hole in it and pour the bourbon out from under it. Then strain the bourbon through cheesecloth, and then again through a coffee filter. That second pass is the difference between silky and greasy. Still see a slick on top? Refreeze and skim once more.
STEP 6 — STORE IT RIGHT
Back into a clean bottle, labeled with the date. Refrigerate it and use it within about 3–4 weeks for best flavor. If it ever smells sour or rancid, toss it — trust your nose.
TROUBLESHOOTING
Cloudy bourbon? The fat emulsified — usually from shaking while it was cooling. Refreeze it and filter again.
Too subtle? More fat, or a longer steep, next batch.
Too bacon-forward? Blend it back with fresh bourbon until it balances.
Bitter? The fat got scorched or carried solids with it. Render gentler, strain cleaner.
PUT IT TO WORK — THE BENTON'S OLD FASHIONED
2 oz bacon-washed bourbon
¼ oz maple syrup
2 dashes Angostura bitters
Stir with ice until well chilled, strain over a large cube in a rocks glass, and garnish with an orange twist. And yes — that same bacon bourbon makes a mean Manhattan: swap it into the classic 2-to-1 rye build from our first article and prepare to have opinions.
BEYOND BACON
Once you've got the technique, the fat is a dial, not a rule: brown butter for nutty roundness, coconut oil for a tropical lean, duck fat for pure luxury. Every one of them starts the same way — something good rendered slow in a pan.
Behind the bar or behind the line, it's the same lesson: respect the ingredient, mind the details, and don't waste the good stuff. The bacon fat was headed for the bin at a hundred bars before Don Lee saw what it could be. Around here, we call that chasing the light — even in a skillet.
Real stories. Real business. Real growth. See you at the next pour.
— Irish Unc, TheLightBringer
Behind the Bar & Beyond | The Lightbringer Chronicles
Sources: The PDT Cocktail Book (Jim Meehan with Chris Gall); Dave Arnold, Liquid Intelligence; Punch Drink's coverage of the Benton's Old Fashioned.
