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One of the great things about these Oven Baked S’mores is that you don’t have to heat them over a firepit one at a time. One big baking sheet and you’re feeding the whole crowd. So if sitting outside in the humidity with bugs isn’t your jam this time of year, but you are craving the melty sweet chocolate-and-marshmallow treat, this recipe is for you.

Table of Contents

Tools & Equipment

Broiler-safe rimmed baking sheet
Parchment paper that can take high heat
An oven with a broiler setting
Oven mitts or hot pads

How To Make Oven Baked S’mores

You only need a handful of ingredients to get you to smores heaven!

Graham crackers, marshmallows, and Hershey's chocolate bars on a counter

Step 1. Line a baking sheet with parchment paper. Parchment comes in different heat tolerances, but most will usually go to 450F. If the package doesn’t say, use foil instead.

Step 2. Break the crackers so you have 18 squares as shown. Lay out 9 of the bottoms and set the “tops” aside.

Graham cracker squares lined up on a parchment-lined baking sheet

Step 3. Add 2 marshmallows on each graham cracker square on the baking sheet.

Two marshmallows placed on each graham cracker square

Step 4. Set the oven to broil and place the baking sheet in the oven to toast the marshmallows under the broiler for 30 to 90 seconds, until golden brown. Watch them very closely and do not walk away from the oven — they burn fast, so check every 10 to 15 seconds.

Golden toasted marshmallows on a baking sheet

Step 5. Stay nearby so you can watch for the marshmallow tops to turn golden brown. It happens fast under the broiler. Unwrap and top each set of marshmallows with a chocolate bar, about the same length as the cracker.

Hershey's chocolate bars placed on toasted marshmallows

Step 6. Turn the oven off. Slide the pan back into the oven with the open-face smores for about 45-60 seconds, and the chocolate bars will melt slightly, but still hold their shape.

Chocolate melting on toasted marshmallows in the oven

Step 7. With hot pads, take out the baking sheet and immediately add the graham cracker tops that you set aside earlier. Gently press each down on top of the chocolate.

Assembled oven baked s'mores on a parchment-lined sheet

Step 8. Serve the s’mores immediately, or let them cool completely before serving.

Close-up of an oven baked s'more with chocolate oozing out

Tips

Don’t get distracted. Because the marshmallows toast very fast, don’t walk away from the oven while the marshmallows are under the broiler or they could burn.
The s’mores can be stored in a zip-lock bag or food storage container with a lid and kept at room temperature for up to 5 days.
To reheat leftover s’mores, heat on high on a microwave-safe plate for about 10 seconds for one s’more.
I like to use 2 regular sized marshmallows per s’more sandwich, but one will work or even 4 could possibly fit on the graham cracker.

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Close-up of an oven baked s'more with melting chocolate

Oven Baked S’mores

Make s’mores for a crowd without a campfire. These oven baked s’mores toast a whole batch of marshmallows under the broiler at once, so everyone gets a gooey, chocolatey s’more at the same time.

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Prep Time 5

Cook Time 3

Total Time 8

Course Dessert

Cuisine American

Servings s’mores

Ingredients

9 graham cracker sheets 18 graham cracker squares total
18 marshmallows about 2 per s’more
9 fun-size Hershey’s milk chocolate bars

Instructions

Line a baking sheet with parchment paper.
Break the 9 graham cracker sheets in half to make 18 graham cracker squares. Set 9 squares aside and place the other 9 on the prepared baking sheet.
Add 2 marshmallows on each graham cracker square on the baking sheet.
Set the oven to broil and place the baking sheet in the oven to toast the marshmallows under the broiler for 30 to 90 seconds, until golden brown. Watch the marshmallows very closely and do not walk away from the oven; they will burn very fast, so check them every 10 to 15 seconds.
Remove the baking sheet from the oven as soon as the marshmallows are toasted (do not let them burn). Top each s’more with an unwrapped fun-size Hershey’s bar.
Turn the oven off, then place the baking sheet back into the oven, which should still be warm from the broiler, just until the chocolate is melted (about 30 to 60 seconds if the oven is off but warm).
Remove the baking sheet from the oven and place the reserved graham cracker squares on top of the chocolate to form the s’mores.
Serve the s’mores immediately or cool completely before serving.

Notes

Do not walk away from the oven while the marshmallows are toasting under the broiler. They burn very fast.

Store the s’mores in a zip-top bag or a food storage container with a lid at room temperature for up to 5 days.

To reheat a leftover s’mores, heat one “sandwich” at a time on a microwave-safe plate for 10 seconds. The marshmallow will expand as it warms.

This recipe uses 2 regular-sized marshmallows per s’more, but 1 will work, or even 4 could fit on the graham cracker.

Tried this recipe?Let us know how it was!

The bottom line

Where there’s a will, there’s a way, and the toasty flavor of a golden brown marshmallow shines through even when making a whole baking sheet of these Oven Baked S’mores indoors.

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