This celebratory ice cream cake packs all the deliciousness of a classic sundae into one impressive dessert. A homemade hot fudge sauce does double duty here: one part is mixed with the cookie crunchies for a fudgy-yet-crispy layer in the center, while the rest gets drizzled on top for a festive look reminiscent of a hot fudge sundae. Feel free to dress up the top with sprinkles, whipped cream, cherries or keep it simple.
