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CPA: Certified Pastry Aficionado

S’mores Sundae

ice cream· National Ice Cream Month· Summertime Favorites
July 15, 2019

Jump to Recipe Print Recipe

S’mores Sundae – Vanilla ice cream is topped with all the making of classic s’mores – graham cracker pieces, hot fudge, and homemade marshmallow fluff. 

Bowl of S'mores Sundae with toasted marshmallow on top

National Ice Cream Month just wouldn’t be the same without a new sundae recipe. Sundaes were always my first choice at ice cream shops when I was a kid. I love the combination of flavors and textures: cold ice cream with hot fudge sauce, topped with whipped cream, a cherry, and nuts. What’s not to love about that?!

Now that I am older, I make my sundaes a little more sophisticated. I’ve shared two sundae recipes in the last few years: this apple pie sundae and this Elvis sundae. This month, I’ve got TWO new recipes. The first one is coming at you today: S’mores Sundae.

The inspiration for this sundae came from a sundae I ate way too often in college. It was made with vanilla ice cream, marshmallow fluff, crushed graham crackers, and hot fudge. Today’s recipe is similar but the toasted homemade marshmallow fluff and large chunks of graham crackers take it to a whole other level.

Check out my version of my favorite S’mores Sundae!

Bowl of ice cream topped with graham crackers and chocolate syrupS'mores Sundae Spoonful of S'mores Sundae next to the toasted marshmallow

Making this Sundae

This sundae is all about the toppings. Therefore, to make them extra-special, I’ve homemade 2 out of 3 of them: marshmallow fluff and hot fudge. Maybe one day I’ll attempt homemade graham crackers, too. But I just wasn’t up for it this time.

Ingredients

To make the marshmallow fluff from scratch, there are two major steps: whipping egg whites and making sugar syrup. The boiling-hot sugar syrup is thickened and drizzled into the egg whites as they whip to make the glossy, airy marshmallow fluff we all know and love. Also, the hot syrup serves to cook the egg whites so they are safe to eat.

jar of homemade marshmallow fluff

Next comes the hot fudge sauce. I used the same recipe as my peanut butter hot fudge but left out the peanut butter. It’s made by simply heating cream, butter, and corn syrup and then adding chopped pieces of chocolate and mixing together. I let mine cool a little before using so it’s extra thick.

Homemade hot fudge sauce

Assembly

Once you’ve got all your toppings made and ready, it’s time to assemble!

First, add a few crumbled graham crackers to the bottom of your dish. Then, add scoops of your favorite vanilla ice cream. Next comes the hot fudge and more graham crackers. Finally, we top with the homemade marshmallow fluff.

Now comes for the final touch: torching the marshmallow fluff. I used my hand torch for this part – there is really no way of getting around needing a torch for this. I heated the fluff until just a little char formed – it only takes a coupe seconds. Do not let the fluff catch fire!

Tips & Tricks

Here are a few tips to ensure this sundae comes out just as it should:

  1. A candy thermometer is absolutely necessary when making the marshmallow fluff. If you don’t monitor the temperature carefully, the candy could start turning into caramel or it may not be thick enough. Cut out the guess work and get yourself a candy thermometer!
  2. Because we are pouring hot sugar into the mixing egg whites, a stand mixer is needed for this recipe. You can use a hand mixer but you will need an extra set of hands to hold the mixer while you pour the hot sugar.
  3. Hot fudge is so easy to make at home so I included the recipe here. But feel free to use store-bought if you’re just not in the mood to make marshmallow fluff AND hot fudge.
Print Recipe

S'mores Sundae

Vanilla ice cream is topped with all the making of classic s'mores - graham cracker pieces, hot fudge, and torched homemade marshmallow fluff. 
Servings: 4 sundaes

Ingredients

For the sundaes:
  • 1 quart vanilla ice cream
  • hot fudge sauce see recipe below
  • homemade marshmallow fluff see recipe below
  • 12 graham crackers
For the marshmallow fluff:
  • 1/3 cup water
  • 3/4 cup granulated sugar
  • 3/4 cup corn syrup
  • 3 large egg whites
  • 1/2 teaspoon cream of tartar
For the hot fudge sauce:
  • 1/2 cup heavy cream
  • 3 tablespoons butter salted, sliced
  • 1 tablespoon light corn syrup
  • 1/3 cup granulated sugar
  • 4 ounces semi-sweet chocolate chopped
  • 1/2 teaspoon pure vanilla extract

Instructions

For the hot fudge sauce:
  • Add cream, butter, corn syrup, and sugar into a medium saucepan. Whisk together and place over medium-high heat to boil. Once boiling, cook for 3 more minutes, whisking occasionally to keep it from boiling over.
  • Remove from heat and add chocolate and vanilla extract. Whisk until smooth. Let it cool for 10 minutes to let it thicken. Store leftovers in the fridge for up to 2 weeks.
For the marshmallow fluff:
  • Add water, sugar, and corn syrup to medium sauce pan and turn heat to medium-low. Stir until the sugar has dissolved. 
  • Once sugar has dissolved, raise heat to medium and add candy thermometer. Do not stir any longer or else sugar crystals will form. Let candy boil until it thermometer reads 240 degrees. Remove from heat. 
  • Add egg whites and cream of tartar to a clean bowl fitted for a stand mixer. Attach whisk attachment. Beat egg whites on medium until soft peaks form, about 3-4 minutes. 
  • Turn mixer speed to low. Very carefully, pour heated sugar mixture in a thin, slow stream as the mixer beats it into the egg whites. Once all the sugar mixture is combined with the egg whites, turn up speed to medium high to fluff up the mixture again for about 6-8 minutes. The mixture is done with it's thick, fluffy, and glossy. 
  • Store leftovers at room temperature for up to 2 weeks. The fluff will start to deflate over time. You can whip it back up if you desire. 
For the sundaes:
  • To make the s'mores sundaes, scoop ice cream into 4 large bowls. Crumble 2 graham crackers over each sundae. Swirl hot fudge over the tops of each sundae, about 2 tablespoons. Dollop fresh marshmallow fluff over each sundae. 
  • Using a kitchen blow torch, torch the marshmallow fluff until it begins to brown but not catch fire. Serve immediately. 

Pin for later:

S'mores Sundae photo collage

More recipes that you’ll love:

S’mores Cookie Cake

S'mores Cookie Cake in a pie dish

Apple Pie Sundae

Apple Pie Sundae in a glass

Peanut Butter S’mores Cookies

Peanut butter cookie topped with marshmallow and chocolate

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23 Comments

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Comments

  1. Danielle says

    July 21, 2019 at 11:47 pm

    I just can’t wait to get the biggest spoon that I have for this and enjoy the recipe over the weekend. It looks sooo goood!

    Reply
  2. Claire | The Simple, Sweet Life says

    July 21, 2019 at 10:53 pm

    YASS! I love a good sundae and I love a good s’more but together?? Now THIS is a next level summer treat!

    Reply
  3. Veronika's Kitchen says

    July 21, 2019 at 4:42 pm

    This is exactly what I need right now! It’s almost 100F today and we are all melting… only ice cream will save us!!!)))

    Reply
  4. Analida Braeger says

    July 21, 2019 at 2:14 pm

    Now that is a sundae ! I am drooling and needing one . I love the torched marshmallow, very nice touch !

    Reply
  5. Linda says

    July 21, 2019 at 7:27 am

    This would definitely be a popular dessert in my house! I mean, who wouldn’t love marshmallow, fudge and graham crackers on ice cream? I’ve never made my own fluff but I bet its 100% better than what comes in a jar. This is one delicious treat for a hot summer day.

    Reply
  6. Paula Montenegro says

    July 21, 2019 at 7:13 am

    I love sundaes and smores (who doesn’t!) and this looks truly fantastic! I’m saving the homemade marshmallow fluff recipe. Gorgeous dessert!

    Reply
  7. Eva says

    July 20, 2019 at 2:46 pm

    Okay, I am not a fan of s’mores and at firt I frowned about the idea of this sundae. BUT then I read “homemade” marshmallow fluff and that’s basically a soft uncooked meringue and I love that! I would definitely enjoy this one, as the hater of s’mores that I am 🙂

    Reply
  8. Loreto and Nicoletta Nardelli says

    July 19, 2019 at 3:21 pm

    What a dreamy dessert, this ‘smores sundae! Having both the marshmallow fluff and fudge sauce made from scratch is extra special. Would love to dive into it|

    Reply
  9. Tammy says

    July 19, 2019 at 2:55 pm

    Definitely one of the pretties smores I’ve ever seen! I love this idea and wish I had one right now 😀 Saving for later <3

    Reply
  10. Tara Teaspoon says

    July 19, 2019 at 10:43 am

    What a fun summer twist on a classic dessert! I’ve never though about making homemade marshmallow fluff, but I’m excited to try it with this recipe! Thank you for sharing.

    Reply
  11. Aleta says

    July 17, 2019 at 11:00 pm

    S’mores are my absolute favourite! This sundae looks so, so good, I am going to make it this weekend for my Anniversary! My husband will be just as excited as I am!

    Reply
  12. Amber S Battishill says

    July 16, 2019 at 2:50 pm

    Wow, this looks SO GOOD! I definitely need to make this soon! That marshmallow fluff looks awesome!

    Reply
  13. Clair says

    July 16, 2019 at 11:37 am

    OMG! We are a smores loving family and can’t believe we have never thought about doing this! My daughter said she was drooling while looking at these pictures haha!

    Reply
  14. Steph says

    July 16, 2019 at 10:36 am

    WOW. this look so good! So does your recipe for peanut butter smores cookies! yum!

    Reply
  15. Elaine Benoit says

    July 16, 2019 at 10:14 am

    One of my favorite things is s’mores!! Your s’mores sundae looks absolutely scrumptious. I can’t wait to make it!

    Reply
  16. Veena Azmanov says

    July 15, 2019 at 11:15 pm

    Ii am drooling and I just want all of it. Love your presentation too.

    Reply
  17. Kelly Anthony says

    July 15, 2019 at 10:38 pm

    Oh my this s’mores sundae looks like the perfect summer treat. This will be a favorite at my house!

    Reply
  18. Irina says

    July 15, 2019 at 10:30 pm

    I am just drooling … It looks so delicious! I should make it! Thank you for sharing!

    Reply
  19. Sylvie says

    July 15, 2019 at 10:03 pm

    What an epic looking summer dessert! Both desserts are so decadent on their own but together, they really create the most indulgent treat ever!

    Reply
  20. Chef Mireille says

    July 15, 2019 at 9:25 pm

    what a rich looking and decadent sundae – and I would never have thought of making homemade marshmallow fluff. How cool is that! The pics here are just making me so hungry and want to try this at the earliest!

    Reply
  21. Bella says

    July 15, 2019 at 5:43 pm

    yummm this looks amazing! I love a good s’more!!! i need to make this but gluten and dairy free.

    Reply
  22. jenna | the urben life says

    July 15, 2019 at 3:42 pm

    So tasty and fun! Love your photos 🙂

    Reply
  23. Shayla Marie says

    July 15, 2019 at 1:35 pm

    I’m not a fan of smore’s, but this looks like it would be right up my alley!! It looks wonderful!

    Reply

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Hi, my name is Sharon. I’m an accountant by day, risk-taking baker and food enthusiast by night. Come join me as I share my favorite recipes and test out new ones along the way!

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