10-Minute Oven S’mores Bars for Rainy Days

Posted on June 18, 2026

Oven-baked s'mores bars with gooey chocolate ganache and toasted marshmallow topping on a plate

Difficulty

Easy

Prep time

8 min

Cooking time

2 min

Total time

10 min

Servings

9 bars

Rain’s pounding the window. You’re starving. National S’mores Day is laughing at your lack of a campfire. Don’t fall for takeout. These 10-Minute Oven S’mores Bars are the only thing between you and a $40 delivery you don’t need. Crumbs. Butter. Chocolate. Marshmallows. Ten minutes. One pan. Done. No wet firewood. No bug bites. Just a gooey, toasted mess that takes less time than waiting for a pizza. And if you’re still craving something warm and fruit-filled after this, check out this Easy Homemade Apple Crisp Recipe for the same no-fuss energy.

10-Minute Oven S'mores Bars for Rainy Days

10-Minute Oven S'mores Bars for Rainy Days

These quick oven s'mores bars layered with chocolate ganache and toasted marshmallow topping are ready in just 10 minutes — perfect when you want National S'mores Day without an actual campfire.

★★★★☆ (1927 reviews)
Prep: 8 minutes
Cook: 2 minutes
Total: 10 minutes
Servings: 9 bars
Category: Quick Meals | Cuisine: American

Ingredients

  • 1 1/2 cups graham cracker crumbs
  • 6 tablespoons unsalted butter, melted
  • 6 ounces semi-sweet chocolate, finely chopped
  • 1/2 cup heavy cream
  • 2 cups mini marshmallows
  • Pinch of salt (optional)
Ingredients

Instructions

  1. 1. Preheat broiler. Line an 8x8-inch baking pan with parchment paper.
  2. 2. In a bowl, combine graham cracker crumbs and melted butter. Press firmly into the bottom of the pan.
  3. 3. In a small saucepan, heat heavy cream until just simmering. Pour over chopped chocolate and let sit for 1 minute, then stir until smooth. Pour ganache over crust.
  4. 4. Sprinkle marshmallows evenly over the chocolate layer.
  5. 5. Broil for 1-2 minutes until marshmallows are golden and toasted. Watch closely to prevent burning.
  6. 6. Let cool for a few minutes before cutting into bars. Serve warm.
Step 1 Step 2 Step 3

Details

These quick oven s'mores bars layered with chocolate ganache and toasted marshmallow topping are ready in just 10 minutes.

Nutrition Facts (per serving)

Calories 320 kcal
Protein 2 g
Carbs 31 g
Fat 20 g

Notes

Watch the marshmallows closely while broiling, as they can burn quickly. For a dairy-free version, use vegan butter and dairy-free chocolate.

Why This Dish Belongs in Your Busy Schedule

You’re not assembling a dessert. You’re throwing graham cracker crumbs into melted butter. Press. Chop chocolate. Pour hot cream. Spread. Dump marshmallows. That’s it. One pan. Not even a whisk. Use the side of your knife to crush the garlic… wait, wrong recipe. Point is: zero patience required. I don’t even measure the cream, I just eyeball. The marshmallows? I tear the bag open with my teeth. This dish belongs in your life because it respects your time. If you love that kind of efficiency, also steal the method from these Brown Butter Chocolate Chip Cookies Recipe – same shortcut-love, different cookie.

The Perfect Occasion for This Recipe

This is not for a dinner party. This is for the ‘I just got home from the gym, it’s raining, and I want sugar right now’ kind of Tuesday. You’re in sweatpants. You have exactly 17 minutes before your kid needs homework help. This recipe fits that window. No fancy plating. No garnishes. You eat it straight from the pan with a spoon. For more ideas on using mini marshmallows to skip the fluff, try the approach in [Ext 2] (source not provided – but you get the idea: shortcuts are your friends).

Frequently Asked Questions

Can I use pre-crushed graham cracker crumbs?

Yes. Buy the box. Save your knuckles.

What if I don’t have heavy cream?

Use milk and butter – 1/4 cup milk + 2 tbsp butter. Heat and stir. Same result.

Can I skip toasting the marshmallows?

Sure, but then it’s just a s’more bar. The broiler gives you that campfire char in 2 minutes. You have 2 minutes.

My chocolate seized. Now what?

Add a splash more cream. Stir hard. It’ll fix. If not, eat it anyway – it’s chocolate.

Conclusion

Done. Eat it. Now leave the kitchen. The rain isn’t going to listen to itself. Go sit on the couch, dig in with a fork, and let the sugar do its job. Nobody cares if you lick the pan. If you want another one-pan wonder for tomorrow, bookmark this Creamy Blueberry Swirl Cheesecake with Graham Cracker Crust – same cheat code, different fruit.

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