Triple Irish Krispie Pie
Medically reviewed by Christiana George Updated Date: December 18, 2022


Hey guys! Are you all pumped up for St. Patrick’s Day? We are. My husband and I are hosting a beer tasting night this weekend featuring my husband’s Irish Stout. So of course, I needed to make something special for our guests. It started out as just Baileys Pecan Rice Krispie Treats, but soon became something else. This Triple Irish Krispie Pie also has a pretzel crust , a Dark Chocolate Guinness Ganache, and it’s topped with a Jameson Whiskey Chocolate Sauce, caramel, and a Baileys Whipped Mascarpone Frosting. If that doesn’t get your taste buds going, I don’t know what will.

Here’s the first layer. A nice, sweet and salty pretzel crust. It’s the same recipe I used for my Sweet & Salty Gingerbread Pie back in December.

This Dark Chocolate Guinness Ganache is truly amazing. It’s made with a reduction of Guinness Draught beer. You boil a whole can down to 1/4 cup to get all the flavor without the alcohol.

This Baileys Rice Krispie Treats layer is based off of my Dark Chocolate Guinness Rice Krispie Treats I made a few years back. It was really hard not to eat them all, straight out of the pot.

To top it off, I made a Jameson Whiskey Chocolate sauce. I just drizzled it over the top and let it pour down the sides. Don’t worry, you can totally swipe your finger on the excess and lick it. You can drizzle a little or a lot, it’s up to you. You can save the extra to add more drizzle to your slices if you like, or just pour it over some ice cream.

We are not done yet. I also wanted to add some caramel. You can use caramel or caramel topping for this. Just drizzle a little or a lot over the top of the chocolate sauce. Other optional toppings are sprinkles, chopped pecans, mini chocolate chips, or crushed pretzels. The toppings will take your pie from “blah” to “ta-da!”, so have fun with it.

You can leave the pie like this or you can add one more decoration, a Baileys Whipped Mascarpone Frosting. I just took my favorite mascarpone frosting and added Baileys. You will not believe how incredibly delicious it is.

You can pipe it on the pie (I used a Wilton #32 tip) or you can just add a dollop to your slice as you serve it. It adds more Baileys flavor to the pie since the dark chocolate ganache kind of takes over the Baileys flavor in the Rice Krispie layer. The frosting is very light, like a whipped cream.

The flavors and textures in this pie come together so well. The salty/sweet crust crumbles as you eat it. The chocolate ganache is so intensely dark, it pairs well with the salt in the crust and the sweetness of the toppings. The Rice Krispie layer adds a nice little crunch to the whole flavor experience. The chocolate whiskey sauce and Baileys whipped frosting just take it over the edge. I wouldn’t change a thing.

I can’t wait to serve this Triple Irish Krispie Pie to my guests this weekend. They are going to love it.
Triple Irish Krispie Pie
by The Sweet Chick
Prep Time: 1-1/2 hr
Cook Time: 1hr + 2 1/2hr chill
Keywords: bake refrigerate dessert snack baileys irish cream guinness beer jameson irish whiskey dark chocolate St. Patrick’s Day bars rice krispie treats American Irish spring
Ingredients (16 slices)
For the crust
- 1/2 cup all purpose flour
- 1 cup crushed pretzels
- 1/2 cup light brown sugar
- 1/4 teaspoon baking soda
- 1/2 cup butter, melted
For the ganache
- 1 can (14.9 oz.) Guinness Draught beer
- 10 oz. Ghirardelli 60% Cocoa baking chips
- 2 oz. (4 squares) Ghirardelli 100% Cacao Unsweetened Chocolate baking bar, chopped
- 4 tablespoons ( 1/2 stick) unsalted butter, cut into small pieces
- 3/4 cup heavy cream
- 3 tablespoons sugar
- 1/4 teaspoon salt
For the Rice Krispie treats
- 3 tablespoons butter
- 3 cups mini marshmallows
- 1/4 cup Ghirardelli Classic White baking chips
- 3 tablespoons Baileys Irish Cream
- 4 cups Rice Krispies cereal
- 1/4 cup chopped pecans
For the chocolate whiskey sauce
- 1/2 cup Ghirardelli milk chocolate chips
- 1/3 cup heavy cream
- 2 teaspoons Jameson Irish Whiskey
For the whipped topping
- 1/2 cup heavy cream
- 4 oz. mascarpone cheese
- 3 tablespoons powdered sugar
- 1 tablespoon Baileys Irish Cream
Optional toppings
- caramel
- mini chocolate chips
- chopped pecans
- sprinkles
- crushed pretzels
Instructions
For the crust
Preheat oven to 350°F. Line the bottom of a 10 inch round spring-form cake pan with parchment paper and spray the paper and the sides of the pan with non-stick spray ( I used Baker’s Joy).
In a medium bowl combine the flour, crushed pretzels, brown sugar, and baking soda.
Then add the melted butter and mix with a spoon until well combined and mixture in crumbly.
Dump mixture in the bottom of the spring-form pan and pressing with your hands, evenly distribute the mixture.
Bake at 350°F for 12 minutes.
Remove from oven and let cool in the pan.
For the ganache
In a medium saucepan, bring the beer to a boil on medium/high heat. Boil for 20-25 minutes or until the liquid is reduced to 1/4 cup. Set aside.
Place chocolate chips, chopped chocolate and butter in a medium bowl. Set aside.
Mix cream, sugar, and salt in a small saucepan over medium heat and stir until sugar dissolves and liquid is just at a simmer, about 4 minutes.
Pour the cream mixture over the chocolate and butter and let sit for about 2 minutes or so, then gently stir until smooth and glossy.
Pour ganache over the cooled pretzel crust and transfer to the fridge. Chill until set, about 1 1/2 to 2 hours.
For the Rice Krispie treats
Remove pie from the fridge.
In a medium sauce pan, melt butter and marshmallows over low heat. Stir until completely melted.
Remove from heat and the white chocolate chips. Stir until chips are melted. Then add the Baileys and mix well.
Add Rice Krispies and the pecans. Stir until completely incorporated.
Pour the mixture over the chilled ganache and spread it evenly with a piece of greased waxed paper, pressing down so the mixture adheres to the ganache.
Place the pie back in the fridge for the Rice Krispies to set while you make the chocolate sauce.
For the chocolate whiskey sauce
Place the chocolate chips in a glass measuring cup with a spout. Set aside.
In a small sauce pan, bring cream to a boil over medium heat.
Pour cream over the chocolate and let it sit for about two minutes, then stir with a small spatula or fork until mixture becomes smooth and glossy.
Add whiskey and mix well.
Remove the pie from the fridge and remove the sides of the spring-form pan (I left the bottom on for now).
Place the pie on a sheet of wax paper or on a cooling rack with a sheet of wax paper underneath to catch the drips.
Using the measuring cup, drizzle the sauce over the top of the pie. I did mine in a checkerboard pattern, letting some of the sauce drip down the sides.
Allow the glaze to set for about 10 minutes before adding the caramel. If you are not adding the caramel, add any other optional toppings before the sauce sets.
At this point I removed the bottom of the spring-form pan and the parchment paper. I placed the pie in a serving dish.
For the whipped topping
With a stand mixer on medium to medium/high speed, whisk heavy cream until stiff peaks form (be careful not to overbeat, or cream will be grainy).
In another bowl, blend together mascarpone and confectioners’ sugar until smooth. Add the Baileys and mix well.
Gently fold the whipped cream into the mascarpone mixture until completely incorporated.
Decorate the top of the pie any way you like. I used a Wilton #32 tip to decorate the edges of the pie. I kept the remaining whipped topping to add to the slices as I served them. You can save the extra topping for your ice cream or just eat it all. Do keep it refrigerated though.
Optional toppings
If you are adding sprinkles, mini chocolate chips, pecans, or pretzel bits, add them before the chocolate sauce sets.
Pretzel crust recipe from Baker’s Royale.
Ganache recipe adapted from Chocolate Ganache Tart from Chow
Chocolate Whiskey Sauce recipe adapted from Chocolate Whiskey Cake by Flour Arrangements
Whipped Topping recipe adapted from Mascarpone Frosting by Martha Stewart.
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Dark Chocolate Guinness Rice Krispie Treats


Funny thing…I actually didn’t acquire a taste for beer till the last two months of pregnancy with my son. Now don’t get any silly ideas in your head that I was pounding back beers while carrying precious cargo. It was summer time, my husband had just brewed a nice light cerveza and I took a few sips and enjoyed the taste for a change. So after I gave birth and was done breast-feeding, my husband, the beer connoisseur, started bringing home different beers every week for me to try. He was all excited to have a new beer partner and eager student.

When he brought home some Guinness one night for me to try, he didn’t have any high hopes that I would like it. But surprisingly, that was one of my favorites. I liked the smooth dark, slightly bitter taste. Well, that just started the ball rolling. Next thing I knew, he and I were boarding a plane headed to the lush emerald green island of Ireland. It was an incredible trip of pub-hopping in downtown Dublin, touring the Guinness factory, taking a train ride out into the country passing by beautiful farms, cozy little towns, and seeing lots of ruins of ancient castles. And of course, eating some spectacular food. If you ever get a chance to go to Ireland, do it. All the locals were extremely friendly and there is so much to see and do.

Anyways, I digress. Back to the recipe. I have used Guinness in baking before in cupcakes and brownies. But I was looking for something different. How about a crunchy Guinness treat? Yeah, that’s the ticket. Guinness goes great with chocolate, so I paired it up with dark chocolate. I boiled down a cup of Guinness to less than 1/4 cup, then mixed it with Ghirardelli bittersweet baking chips before adding it to the marshmallows and Rice Krispies. And on top of that , mixed in some Hershey’s Dark Chocolate Chips.

As if that wasn’t enough dark chocolate for you, I topped it off with some Guinness dark chocolate frosting that is to die for. I boiled down another cup of beer and again mixed it with some bittersweet chocolate before adding it to a dark chocolate frosting. Oh. Em. Gee. I was eating the frosting by the spoonful. You really don’t taste any beer in either the treats or the frosting, but the boiled down syrup does bring out all the goodness of the dark chocolate.

The frosting is light, fluffy and not overly sweet. It is a perfect pairing for the treats, but I think it would be great for cakes and cupcakes as well. If you don’t want to make the Rice Krispie squares with frosting, you can cut them out into shamrock shapes and cover them with some almond bark or candy melt and decorate. I even got a little silly and traced out a pint glass shape and decorated it with white almond bark and chocolate candy melts.

You can have as much fun as you like, but for the love of Guinness, don’t waste any beer while making these. You will need to open two cans of beer, just make sure there is someone there to drink the rest. And in case you didn’t figure it out already, these are NOT for children. Although I did burn off most of the alcohol, I still made sure to keep these far away from my children. They can wait till they are 21 years old to eat them.

Dark Chocolate Guinness Rice Krispie Treats
by The Sweet Chick
Prep Time: 15-20 minutes
Cook Time: 20 minutes
Keywords: stove top dessert snack rice krispies dark chocolate dark chocolate chips marshmallows St. Patrick’s Day bars rice krispie treats American
Ingredients (24 bars)
For the bars
- 1 cup Guinness beer
- 1/3 cup Ghirardelli 60% Cocoa baking chips
- 3 tablespoons butter
- 4 cups mini marshmallows
- 6 cups Cocoa Krispies
- 1 cup Hershey’s Dark chocolate chips
For the frosting
- 1 cup Guinness beer
- 1/3 cup Ghirardelli 60% Cocoa baking chips
- 2 cups powdered sugar
- 1/4 cup Hershey’s Dark cocoa
- 1/2 cup vegetable shortening
- 1/2 teaspoon vanilla
- 3-4 tablespoons milk
Optional toppings
- sprinkles
Instructions
For the bars
Place beer in a small saucepan and bring to a boil over medium heat. Boil for 15 minutes, until beer is reduced to a little less than a 1/4 cup of liquid.
Remove from heat and add the Ghirardelli baking chips. Stir until all the chocolate is melted. Then put it aside to cool off a little and thicken.
In a large sauce pan, melt butter and marshmallows over low heat. Stir until completely melted.
Remove from heat and add the beer/chocolate mix. Stir until completely mixed.
Then add the Rice Krispie cereal and the Hershey’s chocolate chips. Mix until all is well incorporated.
Then pour the mixture into a greased 9 x 13 pan or a cookie sheet and spread it evenly with a piece of waxed paper.
Place in fridge to cool and set.
For the frosting
Place beer in a small saucepan and bring to a boil over medium heat. Boil for 15 minutes, until beer is reduced to a little less than a 1/4 cup of liquid.
Remove from heat and add the Ghirardelli baking chips. Stir until all the chocolate is melted. Then put it aside to cool off a little and thicken.
In a stand mixer, place the powdered sugar and cocoa. Mix on low until well blended.
Then add the shortening, vanilla, and beer/chocolate mixture. Mix on medium speed until frosting starts to come together.
Add milk 1 tablespoon at a time until frosting becomes light and fluffy.
Spread the frosting evenly over the chilled Rice Krispie Treats with a spatula and add sprinkles if desired.
You can keep the treats refrigerated if you are not eating them right away. However, they can be left out at room temperature.
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