Name: Layered S’mores Bars Recipe
Prep time: 15 min
Cook time: 10 min
Total time: 25 min
Ingredients: 2 cups graham cracker crumbs; 1/2 cup unsalted butter, melted; 1 1/2 cups semisweet chocolate chips; 2 cups mini marshmallows

Layered S’mores Bars Recipe packs all the gooey charm of a campfire classic into an easy pan dessert. I stack a buttery graham cracker crust, a silky chocolate layer, and a toasty marshmallow crown. You slice tidy squares that hold together but still melt in your mouth. I use simple techniques that keep the layers distinct and the cleanup painless.

Easy Layered S’mores Bars Recipe

I built this recipe for days when you crave s’mores without smoke, ash, or sticky sticks. You press, bake, melt, and toast, and the pan does most of the work. The crust stays crisp, the chocolate turns glossy, and the marshmallow gets that golden cap everyone eyes first. You can cool the pan for neat bakery style bars or serve them warm for extra ooze.

Ingredients You’ll Need

I keep the ingredient list short and pantry friendly. You can swap a few items to suit your taste without losing that classic s’mores vibe. I list the core items, then I flag a couple optional boosters that add polish. Pull everything out before you start so you move fast once the chocolate melts.

Crust

2 cups graham cracker crumbs about 16 full sheets
1 quarter cup granulated sugar
1 quarter teaspoon fine sea salt
10 tablespoons unsalted butter, melted

Chocolate Layer

12 ounces milk chocolate bars, broken into pieces, or 2 cups semi sweet chocolate chips
2 tablespoons heavy cream optional for easier spreading

Marshmallow Layer

4 cups mini marshmallows
1 teaspoon vanilla extract optional

For the Pan

Parchment paper
Neutral oil or spray oil

How to Make Layered S’mores Bars Recipe

Set yourself up before you turn on the oven, and the process moves quickly. I line the pan so I can lift the whole slab out for clean cuts. Keep an eye on the broiler during the final toast so you nail that bronze top. The smell will try to make you cut early, but a short chill pays off with sharp edges.

Heat the oven to 350°F. Line a 9 by 13 inch metal pan with parchment, leaving a two sided overhang. Lightly oil the parchment.
Make the crust. Stir the graham crumbs, sugar, and salt in a bowl. Add the melted butter and mix until the crumbs feel like damp sand. Press the mixture into the pan in an even layer and pack it firmly with a flat glass.
Bake the crust for 8 to 10 minutes until it looks set and smells toasty. Set the pan on a rack.
Add the chocolate. Scatter the chocolate pieces over the warm crust. Slide the pan back into the oven for 2 to 3 minutes to soften the chocolate, then pull it out and spread it smooth. Drizzle in the heavy cream if the chocolate feels stiff and stir to glossy.
Add the marshmallow layer. Sprinkle the mini marshmallows over the chocolate in a tight even blanket. Bake for 6 to 8 minutes until the marshmallows puff and show light gold.
Toast the top. Switch the oven to broil and toast for 15 to 30 seconds for deeper color. Watch the pan the whole time and pull it the moment the top reaches your perfect toast.
Cool and slice. Cool the pan on a rack for 1 hour, then chill for 20 to 30 minutes for tidy cuts. Lift the slab out with the parchment, oil a sharp knife, and cut into bars.

Expert Baking Tip

I line with parchment and leave handles so I can lift the whole slab at once. Pack the crust hard so it stays crisp under the chocolate. I warm the chocolate layer just enough to spread it, then I stop so I keep the layers distinct. I oil the knife and wipe between cuts to keep the slices picture perfect.

Variations and Substitutions

Dark chocolate twist: swap in dark chocolate for a richer bite, or mix half milk and half dark.
Peanut butter swirl: warm creamy peanut butter until pourable, drizzle over the melted chocolate, and swirl with a knife.
Fudge style chocolate: melt 2 cups chocolate chips with 1 cup sweetened condensed milk on low heat, spread over the crust, then top with marshmallows.
Cookies and cream: fold 1 cup crushed chocolate sandwich cookies into the melted chocolate.
Gluten free route: use gluten free graham crackers and confirm your chocolate brand stays gluten free.
Dairy free swap: use plant based butter, dairy free chocolate, and vegan marshmallows.
Salty finish: sprinkle flaky sea salt over the warm chocolate before the marshmallows.

Mistakes to Avoid

Skipping parchment makes the slab tough to remove and slice. Line the pan and save your sanity.
Overbaking the crust dries it out. Pull it when it sets and smells fragrant.
Walking away during broil burns the marshmallows fast. Watch the pan and pull it on time.
Cutting while warm creates muddy layers. Cool, then chill a short time for clean edges.
Pressing the crust unevenly creates thin patches. Pack it flat with a glass for even support.

What to Serve with it

Cold milk, hot cocoa, or iced coffee all play well with the sweet and toasty notes.
Fresh berries or orange segments cut through the richness.
Vanilla ice cream turns a square into a full dessert plate.
Salty snacks like pretzels or roasted nuts balance the sweetness at a party spread.

Leftovers

I cool the pan completely before I cover it so steam does not soften the crust. Store the bars at room temperature for up to 2 days in an airtight container with parchment between layers. Chill for up to 4 days if your kitchen runs warm, and let the bars sit out 15 minutes before serving. Freeze for up to one month with parchment between layers, then thaw at room temperature and expect a softer marshmallow.

Nutrition Information

Per bar, based on 24 bars from a 9 by 13 inch pan: Numbers are estimates and vary with brands and portion size.

Calories: about 190
Carbohydrates: about 25 grams
Added sugar: about 18 grams
Fat: about 9 grams
Protein: about 2 grams
Sodium: about 120 milligrams

Ally Sanders