Homemade Coffee Liqueur

Make your own coffee liqueur at home with five simple ingredients and a little patience. This is essentially a from-scratch Kahlua: a rich coffee-sugar syrup spiked with 100-proof vodka and infused with whole vanilla bean for two weeks until the flavors marry into something deep, warm, and dangerously sippable.

Start by dissolving instant coffee crystals and sugar into heated water, stirring until completely clear. Cooling the syrup to room temperature before adding the vodka is critical; hot liquid will cook off the alcohol and leave you with sweet coffee water instead of liqueur. Once everything is combined, split your vanilla beans lengthwise and drop half a bean into each bottle. This exposes the tiny seeds inside, which release far more flavor than a whole, unsplit bean would.

After two weeks of steeping, strain out the vanilla bean and rebottle. The liqueur will be dark, glossy, and intensely flavored. It keeps for months at room temperature.

Pro Tips

• Use 100-proof vodka as specified; lower proof means a weaker, sweeter result that won’t have the right bite
• Glass bottles with tight-fitting caps work best for steeping; avoid plastic
• Store in a cool, dark spot during the two-week infusion for the cleanest flavor
• Use decaf instant coffee if caffeine keeps you up; the flavor difference is minimal in a liqueur this sweet

Variations

• Mocha: Add 2 tablespoons of cocoa powder to the hot syrup
• Spiced: Drop a cinnamon stick and 2 whole cloves into each bottle alongside the vanilla bean
• Gift-ready: Pour into decorative glass bottles with a ribbon for a homemade holiday gift