Make Oreo Dirt Cake Recipe: layered chocolate cake, hot fudge, pudding, and Oreo-topped whipped cream for a crowd-pleasing dessert.
Follow the cake mix directions on the box and bake the batter in a rectangular 9x13 ceramic baking dish until a toothpick comes out clean; once removed, allow the hot cake to cool about ten minutes in the dish. Using the rounded end of a wooden spoon, press a grid of evenly spaced shallow holes across the warm top so the later sauce can sink in; warm the hot fudge until thin and pourable, then gently pour it across the surface so glossy ribbons of fudge seep directly into the spoon-poked holes. Let the fudgy, scent-rich cake cool fully in the rectangular dish so the structure firms and the holes hold saturated pockets of sauce. A clean spoon used to make the holes rests on the rim for continuity.
Whisk one package of chocolate instant pudding with 1 ¾ cups milk until the mixture is glossy and just beginning to thicken; before it sets completely, pour this chocolate pudding slowly and evenly over the cooled, fudge-soaked cake so the pudding nests into the top and creates a smooth, satiny mid-layer. Smooth with a small angled spatula so the pudding layer is level and continuous with the rectangular geometry of the pan, then transfer the dish to the refrigerator to chill for about twenty minutes so the pudding firms into a creamy sheet over the cake.

Stir the final package of chocolate pudding with 1 ¾ cups milk and chill until it sets, then fold it gently into the thawed 8 ounces of cool whip until airy and light-brown, a whipped mousse flecked with Oreo crumbs. Fold about three quarters of the crushed Oreos into this topping, spread the combined whipped chocolate layer smoothly over the chilled pudding-topped cake in the same rectangular dish, and finish by sprinkling the remaining crushed Oreos and a few larger Oreo chunks across the surface for crunchy contrast. Chill again if desired, then slice into neat rectangular portions and serve, the final piece revealing dark, moist cake, deep fudge pockets, a glossy pudding band, and a billowy Oreo-studded whipped topping.
