Lazy girl s’mores brownies are the embodiment of indulgence that manages to be both decadent and surprisingly easy to whip up. Layered with a graham cracker base, rich brownie mix, and a fluffy topping of toasted mini marshmallows, these treats capture the essence of classic s’mores in a gooey, delightful dessert. There’s something utterly satisfying about taking a bite and experiencing that perfect blend of chocolate, toasted marshmallow, and a hint of crunch from the graham crackers—a nostalgic nod to campfire nights and childhood memories.

Table of Contents

Why You’ll Love This Recipe
Ingredients You’ll Need
How to Make Easy Brownies with Box Mix
Storing & Reheating
Chef’s Helpful Tips
Recipe FAQs
Easy Brownies with Box Mix

In this recipe, we take a box mix—your trusty partner in baking—and elevate it into a glorious dessert that will impress family and friends alike. Easy brownies with box mix become a decadent treat with just a few extra ingredients and steps, ensuring you spend less time in the kitchen and more time enjoying the sweetness of life. If you’re looking for a simple yet crowd-pleasing dessert, I invite you wholeheartedly to try these brownies!

Why You’ll Love This Recipe

Simple & Quick: These brownies come together in just about an hour, allowing you to satisfy that chocolate craving without a long wait.
Irresistible Flavor: The warmth of the toasted marshmallows combined with the fudgy brownie is pure bliss.
Eye-Catching Appeal: Topped with gooey marshmallows, these brownies look as delightful as they taste, making them perfect for parties or a cozy night in.
Flexible Serving: Great for dessert, snacks, or a sweet treat when unexpected guests drop by.
Budget-Friendly: Utilizing a box mix keeps costs down while still delivering a homemade experience.

Ingredients You’ll Need

5 graham cracker sheets: These provide the base layer, giving a nod to the classic s’mores flavor while adding a delightful crunchy texture.
1 box of brownie mix for an 8×8 inch pan: Using a box mix simplifies the process, but feel free to use your favorite homemade brownie recipe if you prefer!
2 egg yolks: These enrich the batter, making the brownies fudgier, while the extra fat helps create a luscious texture.
1/2 cup vegetable oil or melted butter: Either works perfectly, but butter adds a richer flavor.
1/3 cup brewed hot coffee: Coffee enhances the chocolate flavor, making it deeper and more robust. If you prefer, you can skip this or substitute it with warm water.
1 tsp vanilla extract: This essential ingredient adds warmth and complexity to your brownies.
1/4 tsp salt: A pinch of salt elevates the sweetness and balances the flavors beautifully.
1/2 cup chocolate chips: These melted pockets of chocolate throughout the brownies add extra gooeyness and joy.
2 cups mini marshmallows: You can’t have s’mores brownies without marshmallows! Their melt-in-your-mouth quality makes these brownies unforgettable.

How to Make Easy Brownies with Box Mix

Preheat the Oven: Begin by preheating your oven to 325°F (163°C). Prepare an 8×8 inch baking pan by lining the bottom with parchment paper or aluminum foil, allowing for some overhang on the sides—this will make lifting the brownies out much easier later on.
Prepare the Graham Cracker Base: Lay the 5 graham cracker sheets in a single layer on the bottom of your prepared pan, ensuring you cover the entire surface. If needed, break some of the sheets to fit perfectly.
Mix the Brownie Batter: In a large mixing bowl, combine the brownie mix, 2 egg yolks, 1/2 cup of vegetable oil (or melted butter), 1/3 cup of brewed hot coffee, 1 tsp vanilla extract, and 1/4 tsp salt. Mix until just combined, and don’t overmix it! Gently fold in the 1/2 cup of chocolate chips for added texture and richness.
Pour the Batter: Carefully pour the brownie batter over the graham cracker base, ensuring it spreads evenly to cover all the crackers.
Bake the Brownies: Place the baking pan in your preheated oven and bake for approximately 40 minutes. When done, the edges should look set and golden, while a toothpick inserted into the center should come out with moist crumbs.
Add the Marshmallows: Remove the pan from the oven and sprinkle the 2 cups of mini marshmallows evenly over the top. Return the pan to the oven and bake for an additional 3-4 minutes, just until the marshmallows puff up and start turning golden.
Toast the Marshmallows: Once the marshmallows are lightly golden, take the brownie pan from the oven. Using a kitchen torch, gently toast the marshmallows to achieve that classic s’mores experience. If you don’t have a torch, you can place the pan under the broiler for a couple of minutes—but be sure to keep a watchful eye to avoid burning!
Cool and Slice: Allow the brownies to cool completely in the pan. When ready to slice, lift them out using the parchment paper for ease. Follow my cutting tips in the notes for clean slices!

Storing & Reheating

Keep your brownies at room temperature in an airtight container for up to 4 days, allowing their rich flavors to deepen. If you prefer to refrigerate them, use a tight-sealing container for a maximum of one week. For longer storage, wrap individual pieces in plastic wrap and place them in the freezer for up to 3 months. Just remember, reheating may alter the texture slightly, so pop them in the microwave for about 15-20 seconds when you crave a warm brownie!

Chef’s Helpful Tips

Make sure not to overbake the brownies; a slightly gooey center is what you want.
If you want a richer flavor, try using brown sugar instead of white in your brownie mix.
Always mix your batter gently to maintain that desirable fudgy texture; overmixing creates a denser brownie.
If your brownies are too sticky to cut, refrigerating them for about an hour can make slicing much easier.
Feel free to experiment with flavors—try adding in some nuts or even a swirl of peanut butter for extra decadence!

Having a recipe for lazy girl s’mores brownies means you’re never far from dessert bliss. With a delightful mix of ease and taste, you’ll find excuses to make these again and again. Why not put your unique spin on this recipe? Perhaps you’ll add a few extra chocolate chips or play with the toppings.

Enjoy the incredible combination of flavors and textures that this easy brownie recipe brings to your table—your friends and family will surely thank you for it!

Recipe FAQs

Can I use a different size pan for this recipe?

Yes, you can use a different size pan, but keep in mind that this will change the baking time. If you choose a larger pan, the brownies may bake faster, and if you use a smaller pan, they may need longer. Always check for doneness with a toothpick!

Can I make these brownies without coffee?

Absolutely! While coffee enhances the chocolate flavor, you can substitute it with warm water instead to maintain the moisture in the batter.

How can I make these brownies gluten-free?

To make gluten-free brownies, look for a gluten-free brownie mix at your local grocery store, and substitute the graham crackers with gluten-free graham crackers or crushed gluten-free cookies for the base.

What can I use if I don’t have mini marshmallows?

If mini marshmallows aren’t available, you can use standard-sized marshmallows instead. Just cut them in half, or use marshmallow fluff as a topping after baking. Be sure to broil carefully as it may melt faster!