Homemade Kahlúa
Yields: About 750ml–900ml | Real grounds, 2–4 day spirit steep
Ingredients
Coffee steep
- 1 cup Freshly Roasted Coffee Beans, coarsely ground (dark or espresso roast; grind like French press — too fine gets muddy and bitter)
- 2 cups Vodka (80-proof) or, preferred: 1½ cups vodka + ½ cup dark rum
Finish
- 1½ cups Turbinado or Demerara Sugar
- 1 cup Filtered Water
- 1 Vanilla Bean, split lengthwise or 2 tbsp Pure Vanilla Extract
- Pinch Fine Salt (optional — rounds bitterness)
Instructions
- Grind: Grind beans coarse. Fresh grind matters more here than brand snobbery — stale grounds make flat liqueur.
- Steep the grounds: Put coffee in a clean quart jar. Cover with the vodka (and rum, if using). Seal and shake. Store in a cool, dark place 2–4 days, shaking once a day. Taste at 48 hours: you want deep coffee, not ash. Most batches peak around day 3; go to day 4 only if it still tastes thin.
- Strain hard: Pour through a fine-mesh sieve, then through a coffee filter or paper filter until the liquid runs clear. Squeeze the grounds gently — do not wring mud into the jar. Discard grounds.
- Syrup: In a saucepan, heat water and turbinado sugar until fully dissolved. Cool completely. If using a vanilla bean, drop it into the warm syrup to steep while cooling.
- Combine: Stir the coffee infusion into the cooled syrup. Add vanilla extract if you did not use a bean; add the pinch of salt if you like. Mix well.
- Marry: Rest another 3–7 days in a cool, dark place (remove the vanilla bean before final bottling). Filter once more if any sediment appears, then bottle.
No instant, no shortcuts: Instant coffee is out. Steeping real grounds in the spirit pulls oils and aroma the syrup method never gets. Do not hot-brew coffee into this recipe — heat plus alcohol plus long rest turns harsh; the cold spirit steep stays smooth.
Uses & storage: White Russian, Black Russian, espresso martini riff, spiked coffee, ice cream. Cool cupboard is fine; chill to serve. Shake if sugar settles. Best within a couple of months while the coffee still tastes fresh.