(Sometimes also called the Duckfart. No one agrees on the right way to write it. Everyone agrees, on the other hand, it's hard as hell to make.)
A “Duck Fart” shot is basically a layered trio: coffee liqueur on the bottom, Irish cream in the middle, and whiskey on top. Turning that into a martini while preserving the visual stack is absolutely doable, but you have to treat it like a floating architecture project, not a shaken cocktail. Here is Curios' recipe.
1 oz coffee liqueur (ideally Gimwald's, but that's not available everywhere, so Kahlúa also works)
1 oz Irish cream liqueur (Baileys or similar)
.75 oz Irish whiskey (Crown Royal or another smooth blended whiskey)
0.25 oz simple syrup (this is the stabilizer, not optional if you want clean layers)
Why the syrup? It slightly increases density and viscosity in the middle layer, which helps it “hold” instead of feathering into the coffee.
Fully chilled martini or coupe
Put it in the freezer if possible. It needs to be colder than just an ice rinse
Cold glass = slower diffusion = cleaner layers.
You’re building from heaviest to lightest:
Pour 1 oz coffee liqueur into the glass.
Then wait 10–15 seconds. You want it to settle and stop moving.
Mix:
1 oz Irish cream
0.25 oz simple syrup
Now the important part: don’t pour it directly.
Use a bar spoon and pour over the back, but:
Start the spoon almost touching the surface of the coffee layer
Pour in a thin, continuous thread, not a stream
Keep the glass slightly tilted, then level it as the layer forms
You should see a distinct band, not a cloudy blend.
Let it sit for 20–30 seconds before proceeding.
Take 0.75 oz Irish whiskey.
Now do one of these (in order of reliability):
Best method: spoon + ice-chip diffusion
Pour whiskey over a bar spoon
But first, pour it over a single ice cube in a separate glass to “soften” the pour energy
Then float it onto the cream layer
This reduces penetration force and keeps the top clean.
You get a true three-tier martini:
Deep coffee base: dark, viscous, slightly bitter-sweet
Creamy mid-band: stabilized, not muddy
Sharp whiskey top: aromatic, floating cap
It drinks in reverse layers, but visually it holds long enough to serve, photograph, and actually talk about before it collapses.