Coffee Liqueur And Rum Ice Cream Float

Pro tips

• Let vanilla ice cream soften for 2–3 minutes before scooping to avoid dense, compacted scoops that won't meld with the liqueur and rum.
• Pour the coffee liqueur and rum together first, then add ice cream scoops directly into the liquid to let them dissolve slightly for a creamier texture.
• Use full-fat vanilla ice cream for richer mouthfeel; budget or low-fat brands can taste icy or thin when mixed with spirits.
• Serve immediately after assembly to catch the float while the ice cream is still intact but beginning to melt into the drink.

Substitutions

• Coffee liqueur → Kahlúa or Tia Maria (or cold brew coffee + simple syrup for non-alcoholic)
• Light rum → Spiced rum (warmer spice notes) or dark rum (deeper molasses flavor)
• Vanilla ice cream → Salted caramel or coffee ice cream (complementary flavors, but alters the original profile)

Storage & make-ahead

Assemble floats fresh to order; pre-mixed components separate and ice cream melts. Unopened liqueur and rum store indefinitely in a cool, dark place.

Can I make this without alcohol?

Yes. Replace the coffee liqueur with cold brewed coffee or espresso, and use a non-alcoholic liquid like milk or cream in place of the rum for a similar flavor without the booze.

What rum works best for this float?

Light (white) rum is traditional and keeps the drink smooth. Spiced rum adds extra warmth; dark rum creates deeper molasses notes.

Should the ice cream be soft or hard?

Slightly soft vanilla ice cream (let sit 2–3 minutes at room temperature) scoops easier and melts into the drink more evenly than rock-hard ice cream.

Can I scale this for a crowd?

Yes. Use 1 oz coffee liqueur and 1 oz rum per serving, with 2 scoops vanilla ice cream per float. Batch the liqueurs in advance and scoop ice cream just before serving.

What's the best glass to use?

A highball, rocks, or wide-mouth glass works well. Wider glasses make it easier to scoop and consume the ice cream.