Brown butter is already one of the great flavours — nutty, toasty, faintly caramel, the smell of a pan just before something good happens. Washed into bourbon it produces an Old Fashioned with a weight and a roundness that no amount of syrup can fake, because the richness is textural rather than sweet.
⭐ This is the one to make for somebody who says they find Old Fashioneds harsh. The fat softens the ethanol edge in a way sugar cannot, and it does it without making the drink sweeter — which is exactly the problem sugar creates when you overuse it to solve the same complaint.
It belongs to the modern Australian and New Zealand bar school, where fat-washing became a house habit rather than a party trick.
Ingredients
- 2 oz Bourbon, Fat-Washed — the brown butter version
- 1/4 oz Simple Syrup, Rich Demerara
- 3 dashes Angostura bitters
- 1 dash black walnut bitters (optional, very good)
- 1 wide strip orange peel
- 1 large clear ice cube
Directions
- Make the brown-butter-washed bourbon first — see Bourbon, Fat-Washed. Brown the butter properly to a deep golden with visible toasted milk solids; pale butter gives you fat without flavour.
- Demerara syrup and bitters into the glass; stir together.
- Add the washed bourbon, stir a couple of turns.
- Large cube in, stir 20–30 seconds.
- Express the orange peel over the surface, wipe the rim, drop it in.
Notes
Demerara over white sugar here. The light molasses note runs alongside the toasted-butter character instead of cutting across it.
Cut the syrup if it reads rich. Fat is not sweetness, but the mouth reads weight as richness, so a drink that is correctly sugared on paper can taste heavy. A scant quarter-ounce is a safer start than a generous one.
Do not garnish with anything dairy. It sounds obvious; people try.
Toasted pecan oil in place of the butter makes a superb autumn variation — same method, and it goes very well with the maple build in Old Fashioned, Maple and Rye.
See Brown Butter (Beurre Noisette) for the browning itself.