This fancy looking S'mores Trifle dessert is easy to make in under an hour but is best when it gets to sit in the fridge for a few hours before serving.
Bake the brownies in a 9 x 13" pan as directed on box. Cool, then cut into approximately 2" chunks.
While the brownies are baking prepare the pudding as directed on the box, cover and put in the fridge to chill.
Place 1 sleeve of graham crackers in a zippy bag and break them into pieces. You want bite-sized chunks not crumbs.
In a medium bowl, stir together the Cool Whip and the Marshmallow Fluff.
When all the parts are ready start by placing about 1/2 of your brownie pieces in a layer in the bottom of your trifle dish.
Next, Spoon 1/2 the chocolate pudding on top of the brownie layer, being careful to keep the sides of your trifle dish clean.
On top of the pudding layer, carefully place a layer of graham cracker pies so that the pudding is well covered.
Spoon about 1/3 of the marshmallow mixture on top of the graham cracker layer, again being careful of the sides.
Repeat the layers again: brownies, pudding, graham crackers, and marshmallow mixture.
Turn oven to broil. Line a 13 x 9" pan with aluminum foil.
Place a layer of whole graham crackers on top of the foil. Then sprinkle the mini marshmallows and chocolate chips on top.
Place the pan in the broiler for 10-15 seconds, until marshmallows are golden and the chocolate chips start to melt.
Remove from the oven and let cool, then place them on top of the trifle.
Place trifle in the fridge for at least 3 hours to allow the flavors to meld together before serving.