With Aug. 16 designated as National Rum Day, we’ve got the perfect opportunity to explore one of the most diverse spirits available. Rum — made from molasses and then often aged in oak barrels — is incredibly versatile because no single standard defining what it can be exists; instead, rum varies in proof, flavor characteristics and other ways based on the rules and regulations in each country where it’s produced.

These three cocktails, including a classic, a riff on a classic and an original offering, display rum’s versatility and complexity. It’s good with spice, bitterness, bright citrus and other flavor pairings.

Flor Spicy Daiquiri

1 small pinch of salt

3/4 oz. lime juice

3/4 oz. simple syrup

1 oz Ancho Reyes Ancho Chile Liqueur

1 oz. Flor de Cana 7

Combine all ingredients and half a cup of ice in a cocktail shaker and shake well. Strain into cocktail glass. Garnish with sliced lime.

— Flor de Caña Rum

East India Negroni

2 oz. Banks 5-Island rum

1 oz. Campari

1 oz. Lustau East India sherry

Orange peel for garnish

Add all the ingredients but the garnish to a mixing glass, then add ice. Stir and strain into a rocks glass with one large ice cube. Garnish with the orange peel.

— Jim Meehan, author of “The PDT Cocktail Book”

Hellfire

1 oz. Sailor Jerry Spiced Rum

2 dashes hot sauce

1/4 of a fresh lime

Lime wedge for garnish

Pilsner

Shake Sailor Jerry with lime and hot sauce and strain into a beer glass full of ice. Top with beer and squeeze and drop a lime wedge garnish.

For an extra kick, top half with desired beer and half with ginger beer.

— Sailor Jerry Rum