How it works
Many aroma compounds dissolve better in fat or alcohol than in water. Mix a liquid or melted fat into a spirit, give it time, then chill it so the fat solidifies and can be lifted off. The spirit keeps the aroma and gains a slightly silkier texture.
Basic ratio
About 2–4 oz (55–110 g) of fat per 750 ml of spirit. Rest 2–4 hours at room temperature, freeze overnight, remove the fat cap, and strain through a coffee filter.
Good pairings
- Brown butter + bourbon or aged rum
- Coconut oil + white rum or blanco tequila
- Sesame oil (small amount!) + Japanese whisky
- Olive oil + gin or vodka
Safety
Store fat-washed spirits in the fridge and use within a month. Strain well — leftover fat can go rancid.