This Baileys Irish cream mug brownie is decadently fudgy and perfect as a single-serve dessert. Whisk the dry ingredients in a mug, stir in Irish cream, microwave for about a minute, then top with ice cream for an irresistible treat.
Your weekend indulgence has arrived.
This Baileys mug brownie is an ideal small dessert to enjoy any night of the week. It’s rich, chocolatey and intentionally small — a true single serving. It’s great for celebrating a holiday like St. Patrick’s Day or simply treating yourself without making a whole pan.
When finished with a scoop of vanilla ice cream, this mug brownie becomes an indulgent, warm-and-cold dessert you can have in just minutes.
True, the microwave time may be slightly more than a single minute depending on your appliance, but overall it’s a super quick and satisfying dessert.
Full disclosure: I haven’t always been a fan of mug cakes because many turn out dry or lack texture. But this mug brownie is different — dense, fudgy and chocolate-forward, more like a proper brownie than a cakey microwave treat.
It originated during a tough night back in 2020 when I wanted a quick chocolate fix. We topped ours with a berry ice cream that paired beautifully with the chocolate. Today’s version swaps in Baileys Irish Cream for a boozy, creamy flavor that elevates the whole dessert.
I’ve always loved the aroma and flavor of Baileys — it’s great in coffee, over ice, or added to dessert recipes. For this mug brownie all the liquid comes from Baileys, which makes the texture tender and the flavor unmistakably Irish cream. If you prefer a nonalcoholic version, swap an equal amount of milk and you’ll still get a delicious mug brownie suitable for kids.
The rest of the ingredient list is straightforward: flour, sugar, unsweetened cocoa powder, a pinch of salt, oil or melted butter, a touch of vanilla, and the essential chocolate chips for gooey pockets of melty chocolate. Simple pantry ingredients come together to create a deeply chocolatey, fudgy mug brownie.
Once it’s cooked, crown the warm brownie with a scoop of vanilla ice cream, dust with a little cocoa powder if you like, and — if you’re feeling indulgent — add another splash of Baileys on top. It’s an effortless dessert that tastes like a treat you’d order out.
Baileys Irish Cream Mug Brownie
Bailey’s Mug Brownie
1
serving
5 mins
1 min
6 mins
Ingredients
- 2 tablespoons flour
- 2 tablespoons granulated sugar
- 1 tablespoon unsweetened cocoa powder
- 1 pinch kosher salt
- 2 tablespoons Baileys Irish Cream liqueur (or milk to make nonalcoholic)
- 1 tablespoon vegetable oil or melted butter
- 1/4 teaspoon vanilla extract
- 2 tablespoons chocolate chips
- Vanilla ice cream, for serving
Instructions
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In a microwave-safe mug, whisk together the flour, sugar, cocoa powder and salt until evenly combined.
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Add the Baileys (or milk), vegetable oil or melted butter, and vanilla extract. Stir until the batter is smooth, then fold in the chocolate chips.
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Microwave on high for 60 to 75 seconds, or until the brownie has set but is still fudgy in the center. Microwave times vary, so check at the shorter time and add a few seconds if needed.
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Top immediately with a scoop of vanilla ice cream and a dusting of cocoa or an extra splash of Baileys, if desired. Serve warm.
Enjoy this quick, fudgy mug brownie whenever you want a single-serving chocolate fix. Best when warm with a scoop of vanilla ice cream — pure comfort in a mug.
Best bite!