S'mores Brownies From Brownie Mix

Jump to Recipe Jump to Video Print Recipe

S'mores Brownies from Brownie Mix are gooey, chocolatey, and sure to please everyone.

Six slices of S'mores Brownies from Brownie Mix on parchment paper.

Upgrade your boxed brownies in 7 other ways:

Jump to:

Ingredients you'll need
Tips for best brownies
How to make this recipe
Recipe FAQs
More about brownies
Other dessert recipes you may like
📖 Recipe
💬 Comments

Ingredients you'll need

For the brownie base

Extra ingredients

Notes and substitutions

Brownie mix: Use a regular-size (about 18 ounces) boxed brownie.
Water: Replace with milk, buttermilk, or brewed coffee to add richness and flavor.
Instant coffee: An optional ingredient that enhances the chocolate flavor and tames the sweetness of the brownies.

Tips for best brownies

Bring eggs to room temperature and lightly beat them to incorporate them well without overmixing.
Grease and line the pan with parchment paper to prevent the brownies from sticking.
To avoid overbaking, check the brownies with a toothpick 2 minutes before they are done. Look for several separate crumbs for fudgy brownies and less for cakey brownies.
Cool the brownies before slicing. Refrigerating them improves their texture.

How to make this recipe

Step 1: Make the brownie batter and combine most of the graham cracker pieces (about 6 pieces) into the batter.

Step 2: Spread it evenly on a 9x9-inch pan.

Adding graham crackers to the brownie batter. Spreading the batter in the pan.

Step 3: Bake the brownies according to the package instructions.

Step 4: Add 2 cups of marshmallows and the remaining graham crackers on top.

Baked brownies with graham crackers in the pan. Adding marshmallows and graham crackers on top of the baked brownie.

Step 5: Broil it on low until marshmallows are lightly toasted, about 2 minutes. Watch it closely as you do this. While still hot, top with 1 chocolate bar.

Adding chocolate pieces on the brownies topped with marshmallow and graham crackers.

Let the brownies set for at least an hour in the fridge before cutting. Refrigerate leftovers and consume them within 5 to 7 days.

Slices of s'mores brownies on parchment paper.

Recipe FAQs

Can I use cold eggs for brownies?

Yes, but be careful not to overmix the batter. Cold eggs won't ruin your brownies, but eggs at room temperature will blend evenly with other ingredients.

What is the best oil for baking?

A neutral-flavored oil is best for baking, such as canola or other vegetable oils. Mild-tasting oils like avocado oil, olive oil, and coconut oil can also be used.

Can I double this s'mores brownie recipe?

Yes! You can easily double this recipe and bake it in a 9x13-inch pan.

More about brownies

If you'd like to know more, here are frequently asked questions on box brownies, including extra tips, troubleshooting, and more.

Other dessert recipes you may like

Phone showing how to tag me on Instagram.

Did you make this recipe? I would love to know! Your feedback helps me make better recipes. Please rate, review, or comment below. Questions about this recipe are welcome, too!

Let's connect on Facebook, Instagram, Pinterest, TikTok, Twitter, and Youtube. Be sure to tag me when you try any of my recipes @recipesbynora!

📖 Recipe