How to Make Traditional Irish Coffee Step by Step

Ever stared at a cup with both coffee and booze and wondered—is this a coffee or a cocktail? At a Guangzhou café called "" (which roughly translates as "Is it or isn’t it?"), the baristas served up two drinks: one called 'Irish Coffee,' the other 'Royal Coffee.' Both had coffee and spirits. So which is which? Here’s how to make the original Irish Coffee—and why it’s not really just coffee.

The short answer: Irish Coffee is a cocktail, not straight coffee. It contains 1.5 ounces (about 44ml) of Irish whiskey, hot coffee, sugar, and is topped with cream. Despite the name, the base spirit makes it a boozy warm drink, not a true brewed coffee beverage.

What Is Irish Coffee, Really?

Irish Coffee isn’t coffee with a shot of booze added. It’s a warm, spirited cocktail invented in the 1940s by a German bartender working at Foynes Airport in Ireland. He created it to impress a female passenger—reportedly a beautiful air hostess. The goal? A drink that warms both hands and heart. The result? A rich, aromatic mix of hot coffee, sugar, whiskey, and cream that smells like a fireplace and tastes like a hug.

Why the Confusion Between Coffee and Cocktail?

At the "" café, customers were asked to guess which of two drinks was the actual coffee: an Irish Coffee or a Royal Coffee. Both contained alcohol and coffee. But only one is considered a proper coffee drink. Irish Coffee, despite its name, is classified as a cocktail—a warm, spiced coffee-flavored drink with whiskey. The glass, the method, and the presence of cream all point to its true identity: a boozy treat, not a morning brew.

What You’ll Need to Make Authentic Irish Coffee

• 1.5 ounces (44ml) Irish whiskey
• Freshly brewed hot coffee (to fill to the cup’s second line)
• Coffee-specific sugar (regular white sugar works too)
• Heavy cream (for topping)
• Optional: chocolate shavings or spray cream for garnish
• Irish Coffee glass (tall, heatproof, with volume markers)

How to Make Irish Coffee: Step-by-Step

Follow these steps closely to recreate the classic drink with flair—including the dramatic flambé.

1. Prepare the Base in the Glass

While your coffee is brewing, pour 1.5 ounces of Irish whiskey and one spoon of coffee sugar into the bottom of an Irish Coffee glass. Fill the liquid only to the glass’s first line.

2. Heat Gently and Melt the Sugar

Place the glass on a heat-safe surface. Using a small flame (like a candle or lighter), gently warm the bottom of the glass. This melts the sugar while slightly heating the whiskey. Keep the glass moving to distribute the heat evenly. Do not let it boil.

3. Light the Drink (Optional but Classic)

Once the sugar has dissolved and the whiskey is warm, carefully ignite the drink using a long match or lighter. Let it burn briefly to release the aromatics. This step is traditional and adds theatre—but always extinguish safely before pouring in the coffee.

4. Add the Hot Coffee

Pour freshly brewed hot coffee into the glass up to the second line. This is usually about one third to halfway up the glass depending on its size. Do not stir yet—let the layers sit momentarily.

5. Top with Cream

The finishing touch is a float of lightly whipped heavy cream. Pour it gently over the back of a spoon so it sits on top of the coffee without mixing in. For extra flair, add a light spray of whipped cream or chocolate shavings on top.

Key Tips for Success

• Use fresh, hot coffee—ideally a medium or dark roast with some sweetness to balance the whiskey.
• Do not stir after adding the cream—it’s meant to sit on top for contrast in each sip.
• Flaming is traditional but optional. If you do it, do it safely and away from flammable surfaces.
• The cream should be cold and lightly whipped—not too thick or sweetened.

Recommended FrontStreet Beans for Irish Coffee

Try FrontStreet Coffee’s Classic Blend for Irish Coffee—it’s a balanced medium-dark roast with notes of dark chocolate, dried fig, and a hint of spice. Its sweetness and body stand up well to the warmth of whiskey and the cool cream topping. Alternatively, their Black Cocoa Blend offers deep roast flavours with cocoa, caramel, and a touch of molasses, pairing boldly with the spirit. Both blends are ideal for creating a rich, flavourful cup that won’t get lost under the whiskey. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.