By 
If you’re a fan of those nostalgic campfire flavors but don’t want to wait for summer bonfires, these Starbucks Copycat S’mores Bars are about to become your new favorite dessert. They combine a buttery graham cracker crust, rich melted chocolate, and gooey toasted marshmallows into one easy-to-make treat that tastes just like something you’d grab from your favorite coffee shop.
I first made these bars for a family movie night, and honestly I wasn’t expecting them to disappear so fast. The edges turned perfectly crisp while the center stayed soft and chewy. My kids kept sneaking pieces before they had fully cooled, and I can’t really blame them. Sometimes the simple recipes turns out to be the best ones.
These homemade s’mores bars are budget-friendly, easy enough for beginners, and perfect for anyone craving a Starbucks-inspired dessert at home.
Why You’ll Love This Recipe
- Rich chocolate flavor in every bite.
- Soft, gooey marshmallow topping.
- Buttery graham cracker base that holds together perfectly.
- Easy pantry ingredients found in most American grocery stores.
- Great for bake sales, parties, holidays, and family gatherings.
- Much cheaper than buying coffee shop desserts.
- Perfect make-ahead dessert.
If you enjoy easy dessert bars, homemade Starbucks copycat recipes, marshmallow desserts, graham cracker recipes, chocolate dessert bars, baked s’mores desserts, and family-friendly baking recipes, this one deserves a spot in your recipe collection.
How I Came Across This Recipe
A few years ago I picked up a Starbucks snack bar with my coffee during a road trip. It reminded me of childhood camping trips where we’d roast marshmallows until they almost burned. The combination of melted chocolate and crunchy graham crackers stuck in my mind.
After several attempts in my own kitchen, I finally found a version that tastes incredibly close to the original but with even more chocolate and a softer center. I have made these dozens of times now, and every batch comes out just a little different—which honestly makes it feel homemade.
Starbucks Copycat S’mores Bars
Course: Dessert, SnacksCuisine: AmericanDifficulty: Easy12
servings20
minutes18
minutes365
kcal38
minutesThese Starbucks Copycat S’mores Bars feature a buttery graham cracker crust layered with rich melted chocolate and topped with gooey toasted marshmallows. They deliver classic campfire flavors in an easy homemade dessert that’s perfect for parties, holidays, or enjoying with a cup of coffee.
Ingredients
- For the Graham Cracker Crust
2 cups graham cracker crumbs
½ cup unsalted butter, melted
¼ cup light brown sugar
1 teaspoon pure vanilla extract
¼ teaspoon salt
- For the Chocolate Filling
2 cups semi-sweet chocolate chips
½ cup milk chocolate chips
2 tablespoons heavy cream
- For the Marshmallow Layer
3 cups mini marshmallows
½ cup marshmallow creme
1 tablespoon melted butter
- Optional Garnish
Crushed graham crackers
Mini chocolate chunks
Chocolate drizzle
Pinch of flaky sea salt
Directions
- Preheat oven to 350°F. Line a 9×13-inch baking pan with parchment paper.
- Combine graham cracker crumbs, melted butter, brown sugar, vanilla, and salt until evenly mixed.
- Press the mixture firmly into the bottom of the prepared pan.
- Bake the crust for 10 minutes until lightly golden.
- Allow the crust to cool for about 5 minutes.
- Microwave the semi-sweet chocolate chips, milk chocolate chips, and heavy cream in 20-second intervals, stirring until smooth.
- Spread the melted chocolate mixture evenly over the crust.
- Drop spoonfuls of marshmallow creme over the chocolate layer.
- Sprinkle the mini marshmallows evenly across the top.
- Bake for 6–8 minutes until the marshmallows begin to puff.
- For a toasted campfire finish, broil for 30–60 seconds, watching carefully to prevent burning.
- Remove from the oven and cool completely before slicing into bars.
Notes
- Chill for 20 minutes before cutting for cleaner slices.
- Fresh marshmallows produce the best gooey texture.
- Store leftovers in an airtight container for up to 3 days at room temperature.
- Refrigerate for up to 1 week.
- Freeze individually wrapped bars for up to 2 months.
Nutrition Facts
12 servings per container
- Amount Per ServingCalories365
- % Daily Value *
- Total Fat
18g
24%
- Saturated Fat 10g 50%
- Cholesterol 22mg 8%
- Sodium 160mg 7%
- Total Carbohydrate
48g
18%
- Dietary Fiber 2g 8%
- Total Sugars 33g
- Protein 4g 8%
- Calcium 48mg 4%
- Iron 2mg 12%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Estimated Cost
- Graham crackers: about $3
- Butter: around $2
- Chocolate chips: about $5
- Marshmallows: around $2
- Marshmallow creme: about $3
- Vanilla and pantry ingredients: about $2
The total cost is approximately $17 for a pan serving 12 people, making each serving cost roughly $1.40, which is much less expensive than buying similar desserts at a coffee shop.
My Personal Thoughts While Making This Recipe
One thing I always notice is how amazing the kitchen smells while these bake. It fills the whole house with buttery graham cracker and melted chocolate aroma that honestly makes everyone wander into the kitchen asking if they’re ready yet.
Sometimes I even sprinkle a handful of chopped Hershey bars on top after baking because the extra chocolate melts into little pools. It isn’t necessary but wow, it sure tastes incredible.
The first batch I ever made looked a little messy, but that actually made them look even more homemade. Perfect bars are nice, but rustic bars somehow feels more inviting.
Tips for Success
- Use fresh marshmallows for the fluffiest topping.
- Allow the bars to cool fully before cutting.
- Chill for 20 minutes if you want sharper slices.
- Line your pan with parchment paper for easy removal.
- Slightly underbake instead of overbaking for a softer center.
- Store in an airtight container to maintain freshness.
Best Time to Enjoy This Recipe
These bars are perfect as an afternoon coffee break treat or an after-dinner dessert.
They also make an amazing late-night snack while watching movies with family or friends.
Best Season to Make These
Although delicious year-round, these bars really shine during:
- Summer camping season
- Fall weekends
- Winter holidays
- Cozy rainy afternoons
- Christmas baking season
Perfect Mood for Eating These Bars
- Relaxing with coffee
- Watching movies
- Reading a good book
- Family game night
- Weekend baking day
- Celebrating small wins
Honestly they just makes any day feel a little happier.
Perfect Occasions
- Birthday parties
- Potluck dinners
- Bake sales
- Baby showers
- Holiday dessert tables
- Backyard BBQs
- Fourth of July celebrations
- Family reunions
- School events
- Weekend gatherings
Frequently Asked Questions
Can I use regular marshmallows instead of mini marshmallows?
Yes. Simply cut large marshmallows into smaller pieces for more even melting.
Can I freeze these bars?
Absolutely. Wrap individual pieces tightly and freeze for up to 2 months. Thaw at room temperature before serving.
Can I make these ahead of time?
Yes. They stay fresh for about 3 days in an airtight container, making them perfect for parties or holiday baking.
Can I use dark chocolate?
Definitely. Dark chocolate adds a richer flavor and balances the sweetness of the marshmallows.
Why did my marshmallows get too brown?
Broilers work very fast. Even 20 extra seconds can make a big difference, so keep watching carefully.
Can I add peanut butter?
Yes. Swirl about ¼ cup creamy peanut butter into the melted chocolate layer before baking for an extra decadent version.
Do these taste like Starbucks?
They’re surprisingly close, but many people actually prefer this homemade version because it contains more chocolate, more marshmallow, and a fresher buttery graham cracker crust.
How should I store leftovers?
Keep them in an airtight container at room temperature for up to 3 days or refrigerate for up to one week. Warm them for a few seconds in the microwave if you like an extra gooey texture.