These S'mores Fudge Brownies have it all — crisp graham cracker, gooey marshmallow and smooth pieces of HERSHEY'S Milk Chocolate Bars. This very well may be the ultimate brownie recipe.
Heat oven according to package directions. Lightly spray one 13x18-inch half-sheet pan with vegetable cooking spray. Place parchment paper on prepared pan. Place pan extender on prepared sheet pan. Stir together graham cracker crumbs, sugar and melted butter in large bowl. Press mixture evenly onto bottom of prepared pan.
Prepare brownie mix as directed on package for fudgelike brownies and HALF BATCH. Stir in 11 oz. (2 cups) Chopped HERSHEY'S Milk Chocolate Bars. Spread evenly over prepared crust.
Bake according to package directions; remove from oven. Sprinkle marshmallows evenly over brownie surface. Return to oven; continue baking additional 2 to 3 minutes or until marshmallows are puffed.* Remove from oven. Cool 10 minutes
Sprinkle chopped graham crackers, pressing down lightly. Sprinkle remaining Chopped HERSHEY'S Milk Chocolate Bars evenly over graham crackers. Cool completely in pan on wire rack. Using hot knife, cut into 2-inch bars.
Step 3: If the marshmallows do not toast enough for your liking, use a culinary torch to toast them.