Here's a challenge - an unbeatable combo of gooey roasted marshmallows, cinnamon-tinged graham crackers, and luscious chocolate, all arranged around the campfire to create that perfect s’mores experience. What could come close up against this classic trio? Brace yourself for the unexpected - a S’mores Icebox Cake. This creation takes the timeless blend from the campfire and traps it in a frozen dessert designed for a crowd.

The key elements are simple – vanilla ice cream, toasted marshmallows, and graham crackers. But the real clincher here is the homemade hot fudge sauce. Made from sweetened condensed milk, this rich, silky chocolate fudge takes just five minutes to pull together. Add a layer of this sweet sauce to the cake, then chill it to achieve that perfect degree of firmness.

Let's take the magic up a notch – this isn't just a treat, it’s an icebox cake that has been designed for efficient serving. The use of fluffier ice creams, such as Tillamook’s variety, ensures controlled melting and easier handling. To further curb its melting races, chill the cake’s serving platter in the freezer before presentation.

The cake does not need immediate consumption like traditional S’mores; this frozen cake can be premade and stored in the freezer. So the party can launch whenever cravings strike - no campfire needed.

Take this advice, keep a close watch on the marshmallows during broiling. The line between a golden and burnt marshmallow is very thin.

If any leftover cake remains, store them in an airtight container. If topped with whole toasted marshmallows, pluck them before freezing the leftovers. If you aim for an avalanche of chocolate delight, swap vanilla ice cream with chocolate chips, or double chocolate ice cream.

Finally, add swirls of whipped cream, chocolate curls, and some more marshmallows and graham crackers to top off this masterpiece. This cake can rest in the freezer for up to three days until serving time, while the hot fudge sauce has an extended shelf life in the refrigerator – up to two weeks.

So, grab your ingredients and get ready to create this chilly, s’mores-inspired cake that's poised to steal the show at your next summer gathering.