Rum and Root Beer Float Cocktail Recipe
Written by MasterClass
Last updated: Jul 26, 2026 • 1 min read
No need to leave the mighty root beer float in the annals of childhood: one small adaptation and it’s transformed it into a thoroughly adult indulgence.
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Learn About Root Beer Cocktails
There’s plenty of alcoholic root beer out there—think root beer schnapps in a Pirate’s Float, or “root beer” beers infused with vanilla, sassafras, and sugar—but a root beer cocktail like the rum float, which builds on the spicy, savory, sweet flavors of the classic caramel-hued soda with a moody complementary spirit like rum is far more interesting.
A float isn’t a float without a cold, creamy component nudging it into milkshake territory: Go classic with vanilla ice cream, on-theme with a rum ice cream, or swap it out for a few ounces of either Rumchata, a spiced rum and heavy cream liqueur, the coffee liqueur Kahlua, or Bailey’s Irish Cream over ice.
Rum and Root Beer Float Recipe
makes
1 cocktailprep time
2 mintotal time
2 minIngredients
- 1
Add crushed ice or ice cubes to a tall glass. Add rum and top with the root beer, leaving an inch or two of space from the rim of the glass. Stir to combine.
- 2
Float the ice cream on top. Serve with a straw and spoon.
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