Luck o' the Irish Brownie Recipe -
Luck o' the Irish Brownie Recipe
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Luck O' the Irish Brownie
These chocolatey, minty brownies will be a hit at St. Patrick’s Day. See more

Luck o' the Irish Brownie

Recipe by  

"This decadent dessert is perfect for a St. Patrick's day celebration full of green!"

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Ingredients Edit and Save

Original recipe makes 1 9x13-inch pan Change Servings
  • PREP

    30 mins
  • COOK

    25 mins

    1 hr 35 mins


  1. Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13 inch baking dish.
  2. Melt the unsweetened chocolate in a cup or small bowl in the microwave. Stir at 15 second intervals until chocolate is smooth. Allow to cool slightly. Transfer to a large bowl, and stir in the margarine and sugar until smooth. Beat in the eggs one at a time, then stir in the vanilla. Stir in the flour just until blended. Pour the batter into the prepared dish and spread evenly.
  3. Bake in the preheated oven until the surface appears dry and the sides are beginning to pull away from the edges of the pan, 20 to 25 minutes. The brownies may look more like cake and may jiggle slightly in the center- this is normal. Remove from the oven and cool in the pan set over a wire rack.
  4. To make the middle layer, beat 1/2 cup of butter with confectioners' sugar in a large bowl using an electric mixer. Add milk as needed to get a spreadable consistency. Stir in the peppermint extract and green food coloring. Spread this over the cooled pan of brownies. Refrigerate for 30 minutes
  5. In a microwave-safe bowl, microwave chocolate chips with the butter until melted. Stir every 20 seconds until chocolate is smooth. Stir in vanilla and then pour over the chilled brownies and quickly spread to cover the surface. Cool again until firm, about 10 minutes, then cut into squares and serve.
Kitchen-Friendly View


  • Tip
  • Aluminum foil can be used to keep food moist, cook it evenly, and make clean-up easier.

Reviews More Reviews

Most Helpful Positive Review
Mar 20, 2008

If anyone is having toruble with the top chocolate layer here's a tip: My recipe does not microwave the chocolate (it got edited by the higher ups) Melt ingredients over low heat on the stove. Turn off heat and add vanilla. Then with a wooden spoon beat it for about 2 minutes until it starts to shine. This also helps to cool it a little. Then spread over green layer and chill. Hope that helps!!

Most Helpful Critical Review
Mar 18, 2008

I followed the recipe exactly and used the correct ingredients. The middle layer came out gritted, the top layer was runny and the brownie on the bottom was still mushy after 40 minutes in the oven at 350. The taste was okay but I will have to make changes if I make this again.

Apr 01, 2008

OMG! If I could give these more than 5* I would. So chocolatey, and minty...what's not to love?! These are very rich and creamy and sooo delicious! The one thing I did do is put each layer in the freezer for just a few minutes before putting in the fridge for 30 minutes. I think that this helped keep the layers defined from each other. If you haven't tried these...YOU NEED TO! This will definately become a regular in our house! Thanks Cher for sharing such a great recipe!!!

Mar 15, 2008

More than 5 stars! Very rich,very chocolatey, very minty....everything you can imagine. These are easy to make and sooo tasty! Will definately be making these again. Thanks Cher for a fantastic Brownie!

Mar 19, 2008

I made a change to the chocolate frosting that went on top. I melted 2 ounces of semi sweet chocolate, 1/3 cup butter and 4 TBL of light whipping cream in a double broiler. Once melted I took off heat and added about 3/4 cup powdered sugar. I then put the bowl with the mixture in it in a bowl of ice and whipped it. The end product is a fluffy fudge frosting. It was a massive hit. They were gone within 2 minutes! It sounds complicated for the frosting but well worth it and reall not that hard.

Mar 17, 2008

Oh my goodness these are rich and delicious. Had the in-laws over and everyone loved them. Did not have unsweetened chocolate so used 6 tablespoons of cocoa and 2 tablespoons of oil for two of the squares, and two squares of semi-sweet chocolate. I also only used approx. 1/2 tablespoon of vanilla in the final layer as I thought 1 tablespoon was a lot. Can't wait to try these with different flavor extracts.

Mar 17, 2008

These were great! Only had semisweet baking squares They were fine with those. Lessened the sugar by a quarter of a cuo because of teh semi sweet chocolate. Wish I had the regular chocolate. Will have to try again soon!

Mar 25, 2012

CRAZY, MAD GOOD ! I usually don't rate recipes...however this dessert warrants rating... AWESOME ! Yes, I'm a guy...that cooks...and has done the Fire Station competitive cooking gigs with my fellow firefighters for over 25 years...and THIS DESSERT IS CRAZY, MAD GOOD...and when I prepared this browie for friends and loved ones, after a cautious sampling these super rich and multi-flavored brownies are GONE! To tell you the truth...I truly do not understand why various reviewers are having issues with preparing this dessert. I followed the instructions that Cher provided to the I always do with recipes I find just find to have a starting point from which to make my own changes later on... and I had zero issues; and it comes out great each time. There are a couple of suggestions that I will make for your consideration: The middle mint layer...I prefer a thicker layer as the instructions will only make for a thin layer...I make about 20% more. Then the top layer...My first attempt to melt the butter with the chocolate as directed resulted in scorched butter as it melts far faster than the chocolate melted...put the butter in when the chocolate is 1/2 melted. Lastly, halve the vanilla in the top layer...unless you REALLY like how it makes the layer taste. I found 1 Tbs of vanilla very over powering... Change the flavoring extract and food coloring to make this WOW dessert work for any occasion...even a Fire Station Dessert Cook Off... lol... Enjoy...


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  • Calories
  • 744 kcal
  • 37%
  • Carbohydrates
  • 98.1 g
  • 32%
  • Cholesterol
  • 82 mg
  • 27%
  • Fat
  • 40.3 g
  • 62%
  • Fiber
  • 2.9 g
  • 12%
  • Protein
  • 5 g
  • 10%
  • Sodium
  • 294 mg
  • 12%

* Percent Daily Values are based on a 2,000 calorie diet.

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