S’mores Brownies Recipe
Rich fudgy chocolate brownies topped with toasted marshmallows and built on a graham cracker crust for a fun twist on classic s’mores.
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Ingredients
S’mores Brownies
4 ½ graham cracker sheets (18 individual graham crackers)
6 ounces semisweet chocolate (1 cup)
½ cup salted butter
2 large eggs
¾ cup granulated sugar
2 teaspoons pure vanilla extract
¾ cup all-purpose flour
1 tablespoon unsweetened cocoa powder
¼ teaspoon fine sea salt
3 cups mini marshmallows, divided
½ cup chocolate chips
Instructions
- Preheat oven to 350°F (177°C) and line a 9×9-inch baking dish with parchment paper.
- Melt chocolate and butter together until smooth, then cool slightly.
- Beat eggs for 1 minute.
- Add sugar and beat for another minute.
- Mix in melted chocolate, butter, and vanilla.
- Add flour, cocoa powder, and salt. Mix until combined.
- Stir in 1 cup mini marshmallows and chocolate chips.
- Arrange graham crackers in the bottom of the pan.
- Spread brownie batter evenly over the graham crackers.
- Bake for 25 minutes.
- Switch oven to broil.
- Add remaining marshmallows on top.
- Broil for 30–60 seconds until lightly toasted.
- Cool completely.
- Slice into 16 squares and serve.
Notes
- For clean cuts, cool brownies completely and use a hot, clean knife between slices.
- Nutrition information is based on the supplied recipe details and may vary depending on ingredients and quantities used.
These s’mores brownies bring together two classic desserts in one irresistible treat. A buttery graham cracker crust sits underneath rich, fudgy chocolate brownies, while a layer of toasted marshmallows on top creates the familiar gooey flavor of traditional s’mores with a bakery-style twist.
Recipe at a Glance
Prep Time: 10 minutes
Cook Time: 27 minutes
Additional Time: 1 hour cooling
Total Time: 1 hour 37 minutes
Servings: 16 brownies
Calories: 255 per serving
Course: Brownies, Dessert
Cuisine: American
Why You’ll Love This Recipe
- Combines fudgy chocolate brownies with the classic flavors of s’mores.
- Includes a graham cracker base that adds a buttery crunch beneath the brownie layer.
- Uses toasted marshmallows for a soft, gooey topping.
- Makes 16 individual squares that are easy to share.
- Can be prepared ahead and stored for later enjoyment.
Equipment You’ll Need
- Measuring spoons
- Measuring cups
- KitchenAid mixer or hand mixer
- 9×9-inch baking pan
- Parchment paper
- Spatula
Ingredients You’ll Need
For the S’mores Brownies
4 ½ graham cracker sheets (18 individual graham crackers)
6 ounces semisweet chocolate (1 cup)
½ cup salted butter
2 large eggs
¾ cup granulated sugar
2 teaspoons pure vanilla extract
¾ cup all-purpose flour
1 tablespoon unsweetened cocoa powder
¼ teaspoon fine sea salt
3 cups mini marshmallows, divided
½ cup chocolate chips
The graham crackers create the classic s’mores foundation, while melted chocolate, cocoa powder, and chocolate chips build a deep chocolate flavor throughout the brownie layer.
Easy Substitutions
Graham Crackers
Use your preferred graham cracker variety or gluten-free graham crackers if needed.
Semisweet Chocolate
Chocolate chips, bars, or discs can be used. Dark chocolate or milk chocolate can also replace semisweet chocolate.
Salted Butter
Unsalted butter can be used instead.
Granulated Sugar
Organic cane sugar can be substituted for regular granulated sugar.
All-Purpose Flour
Use all-purpose gluten-free baking flour as an alternative.
Marshmallows
Mini marshmallows are recommended for even coverage. Large marshmallows can also be used by slicing them in half before topping the brownies.
How to Make S’mores Brownies
Step 1: Prepare the Baking Pan
Preheat the oven to 350°F (177°C). Line a 9×9-inch baking dish with parchment paper for easier removal after baking.
Step 2: Melt the Chocolate and Butter
Melt the chocolate and butter together until smooth and glossy. Allow the mixture to cool slightly before combining it with the other ingredients.
Step 3: Prepare the Brownie Batter
Beat the eggs for 1 minute. Add the sugar and continue beating for another minute.
Mix in the melted chocolate and butter mixture along with the vanilla extract until smooth.
Add the flour, cocoa powder, and salt. Mix until combined and no lumps remain.
Stir in 1 cup of mini marshmallows and ½ cup chocolate chips.
Step 4: Add the Graham Cracker Layer
Arrange 4 ½ graham cracker sheets in the bottom of the prepared baking dish.
Spread the brownie batter evenly over the graham crackers.
Step 5: Bake the Brownies
Bake for 25 minutes.
Remove the brownies from the oven and switch the oven setting to broil.
Step 6: Toast the Marshmallow Topping
Arrange the remaining 2 cups of mini marshmallows over the brownies.
Broil for 30–60 seconds, watching closely, until the marshmallows become lightly toasted.
Step 7: Cool and Slice
Allow the brownies to cool completely on a wire rack.
Once firm, slice into 16 squares and serve.
Tips for the Best S’mores Brownies
- Watch the marshmallows carefully while broiling because they can toast quickly.
- Cool the brownies completely before slicing for cleaner edges.
- Line the baking pan with parchment paper to make removing the brownies easier.
- Use a sharp knife for neat squares, especially when cutting through the marshmallow layer.
Common Mistakes to Avoid
Broiling the Marshmallows Too Long
Marshmallows can quickly go from lightly toasted to overly browned. Keep a close eye on them during broiling.
Cutting the Brownies While Warm
Warm brownies are softer and can be difficult to slice cleanly. Cooling helps them set.
Skipping the Parchment Paper
Without parchment paper, removing the brownies from the pan may be more difficult because of the sticky marshmallow topping.
Variations
Larger Batch S’mores Brownies
Double the recipe and bake it in a 9×13-inch glass baking dish for a larger serving size.
Shortcut Version
A boxed brownie mix can be used as the base if you want a quicker preparation method.
Marshmallow Fluff Version
Mix marshmallow fluff into the brownies and spread it on top for toasting instead of using mini marshmallows.
What to Serve With S’mores Brownies
These brownies can be enjoyed on their own or served with:
- Vanilla ice cream
- A glass of cold milk
- Coffee or tea
- Fresh berries
How to Store S’mores Brownies
Store leftover s’mores brownies in an airtight container at room temperature for up to 2 days.
For longer storage, keep them in an airtight container in the refrigerator for up to 1 week.
How to Freeze S’mores Brownies
Store brownies in an airtight container in the freezer for up to 1 month.
Allow them to thaw at room temperature before serving.
How to Reheat S’mores Brownies
Warm the brownies slightly in the microwave to bring back their soft, gooey texture.
Frequently Asked Questions
Can I use regular brownie mix for s’mores brownies?
Yes. A boxed brownie mix can be used as a shortcut variation.
How do I cut s’mores brownies cleanly?
Cool the brownies completely until firm. Dip a sharp knife in very hot water, quickly dry it, make a cut, wipe the knife clean, and repeat for each slice.
Can I use large marshmallows instead of mini marshmallows?
Yes. Large marshmallows can be sliced in half before placing them on top.
Can I freeze s’mores brownies?
Yes. Store them in an airtight container in the freezer for up to 1 month and thaw at room temperature.
Why are my marshmallows not toasted evenly?
Broiling time is short and marshmallows can brown quickly. Arrange them evenly and watch carefully while they toast.
