This Brownie Oreo Ice Cream Bars is a treat! Fudgy brownies, hot fudge-covered Oreos, and ice cream, topped with whipped cream and crushed Oreos—delicious!
Line a 9x13-inch pan with parchment paper, leaving an overhang for easy removal. Set aside. Preheat oven according to brownie package directions.
Prepare the brownies according to the package directions. Bake the brownies according to package directions, but slightly underbake the brownies by 3 minutes. The brownies should be set, but soft, so they’ll cut nicely when frozen. Remove brownies from the oven and allow them to cool for about 20 minutes.
Coarsely chop all but 3 Oreos. I cut each cookie into 4 even pieces. Gently press the chopped cookies in an even layer on top of the brownies.
Warm the hot fudge for 30 seconds, then drizzle dollops over the cookies. Gently use the back of a spoon to spread the fudge into an even layer. Freeze for 10 minutes.
Let the ice cream sit at room temperature for 5 minutes. Remove the pan from the freezer and scoop large portions of ice cream over the hot fudge layer. Use a spatula to gently press and smooth the ice cream into an even layer.
Freeze for at least 2 hours but preferably overnight.
Spread completely thawed whipped topping evenly over the ice cream and, if desired, garnish with the 3 remaining Oreos. Cover bars and return to the freezer for 30 minutes.
Allow the bars to sit for about 5 minutes to soften slightly before cutting. Use the parchment-paper overhang to lift them from the pan. Run a sharp knife under hot water and wipe it dry between slices. Cover and return any leftovers to the freezer right away.
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Notes
Note 1: Use a brownie mix made for a 9x13 pan (like Betty Crocker Fudge Brownies).Storage: You can store leftovers in the freezer in an airtight container for up to 2 months.