Oreo S'mores Bars with Graham Cracker Crust and Marshmallows
These indulgent s'mores bars combine classic campfire flavors with beloved Oreo cookies for an irresistible twist. A buttery graham cracker and Oreo crust provides the foundation for layers of melted chocolate bars, cream-filled Oreo bottoms, and golden marshmallows. Perfect for parties, potlucks, or satisfying serious sweet cravings, these bars deliver all the gooey goodness of traditional s'mores in an easy-to-serve format. The contrast between the crunchy crust and molten toppings makes each bite a delightful experience that appeals to both kids and adults.
Ingredients
- 12 graham crackers
- 24 Double Stuffed Oreo Cookies
- ¼ cup granulated sugar
- 1 pinch salt
- 8 tablespoons unsalted butter, melted
- 3 extra-large Hershey bars, about 11 ounces totalany milk chocolate barsby weightadds dairy
Maintain chocolate layer coverage
- 24 jumbo marshmallowsmini marshmallows3:1 ratio
Use more pieces to cover surface
Instructions
- 1
Preheat oven and grease baking pan, then line with parchment paper allowing overhang
- 2
Twist tops off Oreo cookies and set bottoms aside
- 3
Pulse Oreo tops and graham crackers in food processor until finely ground
- 4
Combine crumbs with sugar and salt, then stir in melted butter
- 5
Press mixture into prepared pan to form even crust layer
- 6
Bake until edges are lightly golden, then cool briefly
- 7
Layer chocolate bars over crust leaving border around edges
- 8
Arrange Oreo bottoms cream-side up on chocolate
- 9
Top with marshmallows
- 10
Bake until chocolate softens and marshmallows turn golden brown
- 11
Serve immediately for gooey texture or cool for firmer bars
Tips
Save time by using a food processor to create uniform crumb texture for the crust base.
Allow bars to cool completely if you prefer firmer, easier-to-cut squares rather than gooey servings.
Reheat individual portions briefly to restore the molten chocolate and marshmallow texture.
Good to Know
Cover and store at room temperature for up to 3 days or refrigerate for up to 1 week
Prepare crust up to 1 day ahead and store covered at room temperature
Serve at room temperature for firm bars or warm briefly for gooey texture
Common Mistakes
Press crust firmly to prevent crumbling when cutting bars
Leave border around chocolate to prevent overflow during baking
Watch marshmallows closely to avoid burning while achieving golden color
Substitutions
Maintain chocolate layer coverage
Less cream filling but same base flavor
FAQ
Can I use regular-size chocolate bars instead of extra-large?
Yes, use 7-8 regular Hershey bars to achieve the same 11-ounce total weight for proper chocolate coverage.
How long do these bars keep at room temperature?
Store covered at room temperature for up to 3 days, or refrigerate for longer storage up to 1 week.
Can I freeze these s'mores bars for later?
Yes, wrap individual bars tightly and freeze for up to 3 months. Thaw at room temperature before serving.