They deflate as they cool and in the video they were still very hot so the first photo is the end result of cutting them into squares.
S'mores Stuffed Brownie Video RecipeHere's all you need:
1 bag large marshmallows cut into half
1/4 cup chocolate chips
Your favorite brownie mix ( I made cake like brownies to the package instructions.
1 package of chocolate flavored graham crackers.
Line you brownie pan with parchment paper. Place the chocolate graham crackers to fill the bottom of you pan.
Place a cut marshmallow every 1/2 inch. Press chocolate chips into the marshmallows. Pour the prepared boxed brownie mix to package instructions covering the marshmallows and grahams crackers.
Bake in a 350 degree preheated oven until set around 25 to 30 minutes.