A graham cracker crust, decadent fudgy center and a fluffy toasted homemade marshmallow top, these Easy S'mores Fudge Bars are quite the treat! You can fulfill your s'mores dreams without a campfire and sticky mess!
Place graham cracker crumbs, sugar and butter in a medium bowl. Stir to combine.
1 ¼ cups graham crackers crumbs, ¼ cup sugar, ⅓ cup unsalted butter, melted
Transfer crumb mixture to a 9-inch square baking pan coated with cooking spray. Press crumb mixture into the bottom using your fingers.
Bake at 350°F for 8-10 minutes or until crust is set. Remove from oven and let cool completely on wire rack.
For the Fudge Center:
Place chocolate in a medium sized bowl.
8 ounces semisweet chocolate, finely chopped
In a small saucepan, heat the heavy whipping cream over medium heat, just until boiling. Pour over the chocolate and let sit for 10 minutes before stirring until smooth.
1 ¼ cup heavy whipping cream
Pour chocolate over graham cracker crust and cover with plastic wrap. Place in the refrigerator until filling is set, at least 1 hour.
For the Marshmallow Topping:
In the bowl of a mixer, add egg whites, vanilla, cream of tartar, and salt. Beat at high speed until soft peaks form.
4 egg whites, ¾ teaspoon vanilla, ¼ teaspoon cream of tartar, ⅛ teaspoon salt
In a small saucepan, combine the sugar and water. Bring to a boil over medium-high heat. Cook, without stirring, until candy thermometer reaches 250°F.
1 cup sugar, ⅓ cup water
With mixer on medium-low, pour sugar mixture in a thin stream over egg whites. Increase speed to high and beat until stiff peaks form.
Spoon marshmallow topping onto top of fudge layer. Using a spoon or spatula, spread marshmallow topping over top.
Place on middle rack of oven and broil for 1 ½ to 2 minutes or until topping is toasted to a golden brown. Let stand for 5 minutes. Cut into 16 pieces and serve.