Festive Christmas Chocolate Marshmallow Bars

Category: Classic Christmas Cookie Recipes & Holiday Baking

Add holiday magic to your party with these chocolate marshmallow bars, built on a crispy graham cracker foundation with delicious, gooey additions. Great for winter gatherings, these treats combine the goodness of melted butter and cocoa in every chunk. Easy to make, they can be tweaked for gluten-free and vegan needs. Each piece delivers seasonal taste and a warm treat everyone will love. Whip them up ahead for easy hosting or gifting and enjoy alongside hot chocolate or a cup of joe.

Sarah Crisp
Recipe By Sarah Crisp Sarah Crisp
Last updated on Wed, 17 Dec 2025 21:59:52 GMT
A stack of chocolate bars with white icing and red candy. Pin
A stack of chocolate bars with white icing and red candy. | cookrisp.com

These Christmas bars have become my trusted standby for holiday gatherings, school bake sales, and cozy family nights watching movies. The tempting chocolate bottom, stretchy marshmallows, and satisfying crunch perfectly capture what festive get-togethers are all about, bringing back warm memories with every taste. They're a quick way to add holiday magic whether you're rushed for time or need something that works for folks of all ages.

The first time I made these, my house filled with that amazing smell of cocoa and melted butter — you know, the kind that makes everyone wander into the kitchen asking what's cooking. Now my family expects to find a container of these treats sitting out all through December.

Delicious Ingredients

  • Graham cracker crumbs: create that cookie-like base with nice texture try breaking whole crackers yourself for better taste
  • Powdered sugar: gives that smooth sweetness that melts away run it through a sifter to get rid of any clumps
  • Unsalted melted butter: sticks everything together and adds that yummy richness grab the good stuff for tastier bars
  • Mini marshmallows: add fun chewiness and playful texture make sure they're soft and fresh for better melting
  • Chocolate chips: bring that wonderful chocolate goodness pick dark milk or white from a good brand for the best flavor
  • Unsweetened cocoa powder: pumps up the chocolate taste go for good quality for richer flavor
  • Chopped nuts (optional): add crunch if you want walnuts or pecans taste great just check they aren't stale
  • Sweetened condensed milk: sweet and creamy it binds everything nicely don't use old milk from the back of your pantry

Simple Preparation

Preheat the Oven:
Turn your oven to three hundred fifty degrees Fahrenheit one hundred seventy five degrees Celsius right away. This helps your bars cook evenly through and get that just-right texture.
Prepare the Crumb Base:
Grab a big bowl and mix the graham cracker crumbs powdered sugar cocoa powder and a tiny bit of salt if you want. Stir really well to break up any lumps. Your kitchen will start smelling amazing right about now.
Mix in Wet Ingredients:
Add your melted butter and sweetened condensed milk. Keep stirring until everything gets wet and the mix looks thick and sticky. You want it all mixed well so every bite tastes the same.
Add the Marshmallows and Chocolate:
Now fold in those mini marshmallows and chocolate chips. Try to spread them out so they're in every part of the mix. If you're using nuts toss them in now too giving everything a gentle mix.
Spread in Pan and Bake:
Put parchment paper in a nine by thirteen inch pan or just butter it up. Press your mixture into the pan making it flat and even. Pat it down a bit so the bars will hold together later. Smooth the top with a spatula to make it pretty. Bake for twenty five to thirty minutes until the edges look set and the middle isn't shiny anymore.
Cool and Slice:
Take it out and let everything cool completely before you try to cut it. Don't rush or your bars might fall apart. Once it's cool use a sharp knife to cut into little squares that are easy to share.
A stack of three dessert bars with chocolate and fruit toppings.
A stack of three dessert bars with chocolate and fruit toppings. | cookrisp.com

I still laugh thinking about catching my daughter grabbing marshmallows straight from the mixing bowl. We've made it our family tradition to leave these bars out for Santa each year, and funny enough, they're always gone by morning!

Tasty Additions

Try adding dried cranberries or bits of candied ginger for holiday flair. A bit of peppermint extract or crushed candy canes can give a cool winter taste. You can also drizzle in some caramel or white chocolate before baking to make them extra fancy.

Ways To Serve

Stack these bars on a pretty plate with a light sprinkle of powdered sugar to look like snow. They go great with hot apple cider or peppermint tea for the full holiday feeling. For a super special dessert, try layering them with vanilla ice cream and some chocolate sauce on top.

Fun Variations

You can use gluten free graham crackers or ground almonds for the base if you can't have gluten. Switch out butter for coconut oil if you want a dairy free version. Feel free to use whatever chocolate pieces or holiday candy you like. If you don't have mini marshmallows, just chop up the big ones instead.

A stack of dessert bars with a chocolate and caramel topping.
A stack of dessert bars with a chocolate and caramel topping. | cookrisp.com

If you plan to give these as gifts or bring them to a party, make twice as much. Nobody turns down seconds and these always get snatched up fast when placed near hot chocolate. Just the smell brings everyone running to the kitchen, and these cheerful treats are always the first to vanish from our holiday dessert table.

Common Questions About This Recipe

→ Can I prepare the bars ahead of time?

For sure, you can make them one or two days before you need them. Put them in a sealed container and they'll stay good, with flavors actually getting better as they sit.

→ How should I store leftover bars?

Pop any extras in an airtight box at room temp for up to seven days, or stick them in the freezer for up to three months. Wrap them well so they don't get icy.

→ Are there gluten-free or vegan-friendly options?

You bet. Swap out graham cracker crumbs for gluten-free cookies or ground almonds. For vegan versions, try coconut oil instead of butter and plant-based condensed milk.

→ Can I customize the ingredient mix?

You can totally switch things up by using seeds instead of nuts, throwing in some dried fruits, changing chocolate types, or adding your favorite holiday flavors to match your taste or diet.

→ What beverages or sides pair well?

These bars taste great with warm hot chocolate, apple cider, or your morning coffee. Adding a dollop of vanilla ice cream makes them even more special as a dessert.

→ Are these bars suitable for children?

Definitely, kids go crazy for the combo of sweet chocolate and fluffy marshmallows. Just watch out for any food allergies, especially if you've added nuts or certain brands of marshmallows.

Christmas Chocolate Marshmallow Bars

Smooth chocolate and puffy marshmallows turn these Christmas bars into a winter favorite. With crispy graham base and rich cocoa notes, they're quick for busy holiday schedules. Save & click.

Prep Time
25 minutes
Time to Cook
25 minutes
Complete Time
50 minutes
Recipe By Sarah Crisp: Sarah Crisp

Recipe Type: Christmas

Level of Difficulty: Perfect for Beginners

Cuisine Style: American

Makes: 40 Number of Servings (40 bars)

Dietary Categories: Suitable for Vegetarians

Ingredients You’ll Need

→ Base Layer

01 2 cups crushed graham crackers
02 1 1/2 cups confectioners' sugar
03 3/4 cup melted unsalted butter
04 1/4 cup plain cocoa powder

→ Mix-ins

05 3 cups tiny marshmallows
06 1 1/2 cups chocolate morsels
07 1/2 cup diced nuts (if you want)

How to Make It

Step 01

Warm up your oven to 350°F. Make sure it's completely heated before you start baking so everything cooks evenly.

Step 02

Grab a big bowl and mix the crushed graham crackers, cocoa powder, and confectioners' sugar together. Stir until everything's mixed well with no clumps left.

Step 03

Add your melted butter to the dry stuff. Mix it all with a strong spoon or spatula until everything's damp. The mix will end up thick and a bit gooey.

Step 04

Gently stir in your tiny marshmallows, chocolate morsels, and the nuts if you're using them. Just mix enough to spread everything around. Don't mix too much or you'll ruin the marshmallow bits.

Step 05

Coat a 9x13 inch baking dish with cooking spray or put down some parchment paper. Dump the mixture in and flatten it out with your spatula until it's even.

Step 06

Stick the pan on the middle shelf and bake for about 25 to 30 minutes. You'll know it's done when the edges look set and the middle feels slightly firm when you touch it.

Step 07

Take the pan out and let everything cool down completely. After it's cooled, use a sharp knife to cut it into 40 equal squares.

Extra Suggestions

  1. Wait till the bars are totally cool before cutting them to avoid them falling apart and to get clean cuts.
  2. Want easy cleanup? Just line your pan with parchment paper and leave some hanging over the sides so you can lift everything out.
  3. You can make these treats up to two days before you need them. Just keep them in a sealed container on your counter or in your fridge to stay fresh longer.
  4. Need a dairy-free option? Swap the butter for melted coconut oil. Going gluten-free? Use gluten-free graham crackers instead.
  5. Try different mix-ins like dried cranberries, toasted coconut flakes, or a few drops of peppermint extract for a fun twist.

Things You'll Need

  • 9x13 inch baking dish
  • Big mixing bowl
  • Whisk or strong spoon
  • Rubber spatula
  • Sharp knife

Allergen Information

Always read labels for allergens and consult your doctor if unsure.
  • Watch out if you're sensitive to wheat (in the graham crackers), milk (in the butter and chocolate morsels), soy (often in chocolate morsels), and nuts if you add them. Marshmallows might have gelatin too. Always check the packaging for allergy info.

Nutritional Breakdown (Per Serving)

This is for general info and isn't a replacement for professional advice.
  • Calories: 430
  • Fat Content: 18 grams
  • Carbohydrates: 40 grams
  • Protein Content: 15 grams