How to Make Irish Coffee at Home with Exact Measurements

You’re hosting friends or want a cozy evening drink, and someone asks for Irish coffee. You could buy one—but wouldn’t you rather make the real thing? This guide gives you the exact ingredients and steps to make classic Irish coffee just like the original, no guesswork involved.

To make traditional Irish coffee, mix 45ml Baileys and 45ml Irish whiskey in a glass, add hot fresh-brewed black coffee, then float 1 tablespoon of cream on top. Total prep time is around 10 minutes. Adjust coffee and alcohol to taste.

What Is Irish Coffee?

Irish coffee isn’t just a drink—it’s a happy accident that turned into a classic. Born from a mix-up between coffee and spirits, it combines hot black coffee, Irish whiskey, a sweet liqueur (Baileys), and a float of cream. The result is a warming, bittersweet, creamy beverage that blurs the line between coffee and cocktail. It’s often served as a digestif or comfort drink in colder months.

What You’ll Need: Ingredients Breakdown

• 45ml Baileys (coffee liqueur or Irish cream)
• 45ml Irish whiskey
• Freshly brewed black coffee (amount varies by cup size, typically 150–200ml)
• 1 tablespoon (about 15ml) heavy cream
• (Optional) Colored chocolate shavings for garnish

How to Make Irish Coffee: Step-by-Step

Follow these steps in order for the classic layered effect:

1. Pour 45ml of Baileys and 45ml of Irish whiskey into a warm Irish coffee glass or mug.
2. Add freshly brewed hot black coffee to fill the glass about three-quarters full. Use your preferred brew method—just ensure it’s strong and freshly made.
3. Gently float 1 tablespoon of cream on top by pouring it over the back of a spoon so it sits above the liquid. Do not stir after adding the cream.
4. (Optional) Sprinkle colored chocolate shavings on top for decoration.

The drink is meant to be sipped through the cream for the full flavor experience—sweet, boozy, bitter, and creamy all at once.

Can You Adjust the Recipe?

Yes. The original recipe calls for equal parts Baileys and Irish whiskey (45ml each), but you can adjust based on taste or dietary preferences. More coffee can dilute the alcohol; more whiskey or Baileys will increase strength and sweetness. The 1 tablespoon of cream is essential for texture—don’t skip or substitute with milk.

Why Does the Cream Float?

The cream floats because it’s less dense than the coffee mixture below. By pouring it carefully over the back of a spoon, you preserve the distinct layers. This visual and textural element is a big part of what makes Irish coffee so distinctive—and pleasurable to drink.

Frequently Asked Questions

Do I have to use Baileys in Irish coffee?

No, Baileys is not traditional in the original Irish coffee recipe, which used Irish whiskey and cream. However, Baileys (or other Irish cream liqueurs) is a common modern addition that adds sweetness and coffee flavor. For an authentic version, you can skip the Baileys and just use Irish whiskey.

What kind of whiskey is best for Irish coffee?

Irish whiskey is traditionally used because of its smooth, approachable profile. Brands like Jameson or Tullamore DEW work well. The whiskey should be 40% ABV or higher and not overly peaty or smoky.

Can I use cold coffee to make Irish coffee?

No, always use freshly brewed hot black coffee. Cold or reheated coffee won’t mix properly with the alcohol or float the cream correctly, and the flavor won’t be as rich or balanced.

Is it necessary to float the cream on top?

Yes. The cream floating on top is a signature feature of Irish coffee. It’s meant to be sipped through the cream, which provides a contrast to the warm, boozy coffee beneath. Without the float, it’s not traditional Irish coffee.

Can I make Irish coffee without alcohol?

Technically, you can make a non-alcoholic version with just cream and coffee, but it won’t be Irish coffee. The Irish whiskey is essential to the drink’s identity. For a mocktail, try a coffee float with just cream and sweetened coffee.

Recommended FrontStreet Beans for Irish Coffee

Pair your homemade Irish coffee with FrontStreet Coffee’s Ethiopia Yirgacheffe for bright acidity to cut through the cream, or their Classic Blend for a balanced, medium-bodied roast that complements both whiskey and liqueur. For deeper notes, try the FrontStreet Black Cocoa Blend to echo the Baileys’ richness. All three beans are expertly roasted to highlight their unique profiles. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.