S’mores Brownies elevate a simple boxed brownie mix with graham cracker pieces, mini marshmallows, and Hershey’s chocolate squares for an easy, crowd-pleasing dessert.
S’mores Brownies
S’mores are a classic American campfire treat: a graham cracker sandwich with chocolate and a toasted marshmallow. The irresistible combination of crunchy graham, melty chocolate, and gooey marshmallow inspired this brownie variation.
This version layers those familiar s’mores flavors on top of a fudgy brownie base. It’s a quick way to turn a boxed mix into a nostalgic, homemade dessert that kids and adults both love.
Boxed Mix with a Twist
The best part of this recipe is how simple it is. Use your favorite family-size boxed brownie mix, prepare the batter, and finish the bake topped with graham cracker pieces, mini marshmallows, and chocolate squares. If you prefer from-scratch brownies, the method still works with a homemade 13×9 brownie recipe.
S’mores Brownies Ingredients
Seven straightforward ingredients are all you need:
- Family-size boxed brownie mix (18.3 oz box for a 13×9-inch pan)
- Large eggs (use the amount the box recommends for cakey brownies)
- Vegetable oil
- Water
- Graham crackers, broken or cut into bite-size pieces
- Mini marshmallows (about 2 cups)
- Snack-size Hershey’s Milk Chocolate Bars, broken into squares (or substitute regular bars or chocolate chips)
Make the Brownies
- Preheat oven to 350°F (175°C). Grease a 13×9-inch baking pan.
- Combine the brownie mix, eggs, oil, and water according to the box directions, following any instructions for “cakey” brownies. Spread the batter evenly in the prepared pan.
- Bake at 350°F for about 20 minutes, or until the brownies are nearly set—when a toothpick inserted in the center comes out with a few moist crumbs.
Add the S’mores Toppings and Bake Again
- Remove the pan from the oven when the brownies are just under-baked. Evenly sprinkle graham cracker pieces and mini marshmallows over the surface, then arrange chocolate squares on top.
- Return to the oven and bake at 350°F for an additional 5 minutes, or until the marshmallows puff up and the chocolate softens.
Cutting and Serving
These brownies are best enjoyed warm for maximum gooeyness. If you cut them while still hot, spray a sharp knife with cooking spray between cuts to prevent sticking. Alternatively, let the pan cool completely before slicing into 20 squares (5×4 rows) for cleaner edges.
Store leftovers covered at room temperature for up to 3 days. Note that the graham crackers will soften over time.
More S’mores Ideas
- S’mores Cookie Bars
- S’mores Krispie Treats
- S’mores Dessert Bars
- Grilled S’mores Pizza
- S’mores Cookies
- Graham Cracker Pull-Apart Bread
- S’mores Donuts
- Fruit S’mores
- S’mores Cinnamon Roll Cake
S’mores Brownies
Ingredients
- 18.3 oz (520 g) family-size brownie mix (for a 13×9″ pan)
- 2 large eggs (or as directed on the box for “cakey” brownies)
- ⅓ cup (80 ml) vegetable oil (or as written on box)
- ⅓ cup (80 ml) water (or as written on box)
- 6 graham crackers, cut or broken into bite-size pieces
- 2 cups (90 g) miniature marshmallows
- 12 snack-size (153 g) Hershey’s Milk Chocolate Bars, broken into squares (or substitute 2–3 regular bars or 2 cups chocolate chips)
Equipment
- Mixing bowl and spatula
- 9×13-inch baking pan
Instructions
- Preheat oven to 350°F. Combine the brownie mix, eggs, oil, and water according to the box instructions for “cakey” brownies. Pour batter into a greased 13×9-inch pan and spread evenly.
- Bake at 350°F for 20 minutes, until the center is almost set with a few moist crumbs on a toothpick.
- Remove from oven and sprinkle with graham cracker pieces and mini marshmallows. Top with chocolate squares.
- Return to oven and bake 5 more minutes, until marshmallows puff and chocolate softens.
- To cut while warm, spray a knife with cooking spray and wipe between cuts to prevent sticking. Or cool completely and cut into 20 squares.
- Store brownies covered in the pan at room temperature up to 3 days. Note: graham crackers will soften with storage.
Notes
- You can substitute 2–3 regular-size Hershey’s bars or one 10–12 oz bag (about 2 cups) of chocolate chips for the snack-size bars.
Nutrition
Disclaimer: Nutritional values are estimates.
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