Oreo Lasagna

Ingredients

Ingredient notes & substitutions

Oreo cookies:

Leave the filling in. It melts into the crumbs and helps the crust hold together, so there is no need to scrape it out.

Cream cheese:

Full-fat block cream cheese only. The whipped and low-fat tubs carry extra water and will loosen the layer.

Instant pudding mix:

Instant, not cook-and-serve — the two are not interchangeable here. Cook-and-serve will never set without heat.

Whole milk:

Whole milk sets the firmest. Skim works but gives a softer layer that slumps when sliced.

Whipped topping:

Thaw it in the fridge overnight rather than on the counter, which makes it weep. Stabilized homemade whipped cream also works.

Salted butter:

Salted is deliberate — it cuts the sweetness of the crust. With unsalted, add a pinch of salt to the crumbs.

Method

1. 1

   Set aside 10 Oreos for the topping. Crush the remaining 36 into fine crumbs — a food processor takes seconds, or seal them in a zip-top bag and go at it with a rolling pin. You want sand, not gravel; big shards make the crust crumble when you slice it.

2. 2

   Stir the melted butter through the crumbs until every crumb looks damp and the mixture holds together when you squeeze a handful. Tip it into a 9x13 inch dish and press down hard with the flat bottom of a measuring cup. Pressing firmly is what keeps the base from falling apart later. Chill for 15 minutes while you make the next layer.

3. 3

   Beat the softened cream cheese with the powdered sugar until completely smooth, scraping the bowl once. Any lumps you leave now will still be there at the table. Beat in the milk, then fold in 1 1/2 cups of the whipped topping by hand — folding, not beating, is what keeps this layer light.

4. 4

   Spread the cream cheese mixture over the chilled crust, right to the edges. Work gently so you don't drag crumbs up into it. Return the dish to the fridge.

5. 5

   Whisk both boxes of pudding mix with the cold milk for a full 2 minutes. It will look thin at first and then thicken suddenly — keep going until it holds a soft ribbon on the whisk. Let it sit for 5 minutes to set up properly.

6. 6

   Spread the pudding over the cream cheese layer in an even sheet. Chill for 10 minutes so the surface firms enough to take the topping without swirling together.

   
7. 7

   Spread the remaining whipped topping over the pudding, then scatter the chopped Oreos across the top.

   
8. 8

   Cover and refrigerate at least 4 hours, ideally overnight. This is not optional — the layers need that time to set, and a lasagna cut too early slumps on the plate. Slice with a sharp knife wiped clean between cuts.

   

Variations to try

• Peanut butter: beat 1/3 cup smooth peanut butter into the cream cheese layer and swap the top cookies for chopped peanut butter cups.
• Mint: use mint Oreos in the crust and top, and tint the cream cheese layer pale green.
• Golden: swap Golden Oreos and vanilla pudding for a cookies-and-cream version that reads much lighter.
• Peppermint: crush candy canes over the top from December onward.
• Espresso: whisk 2 teaspoons instant espresso powder into the pudding milk to sharpen the chocolate.

Storage & make-ahead

Keep covered in the refrigerator for up to 4 days. The crust softens a little each day, which most people consider an improvement. To freeze, chill until fully set, cover tightly, and freeze up to 1 month; thaw overnight in the fridge rather than at room temperature. Do not leave it out longer than 2 hours — the cream cheese and dairy layers are not shelf-stable.

Frequently asked questions

Can I make Oreo lasagna the day before?

Yes, and you should. It needs 4 hours minimum, but overnight gives noticeably better texture and cleaner slices. Add the chopped cookies on top just before serving if you want them to stay crunchy.

Why is my dessert not setting?

Almost always the pudding. Use instant pudding, not cook-and-serve, whisk it a full 2 minutes, and measure the milk exactly — even a splash of extra milk keeps it soft.

Do I need to remove the Oreo filling before crushing?

No. The filling softens into the crumbs and helps bind the crust. Scraping it out is a lot of work for a worse result.

Can I use homemade whipped cream instead of whipped topping?

Yes, but stabilize it or it will weep into the layers overnight. Whip 2 cups heavy cream with 1/4 cup powdered sugar until stiff.

How do I get clean slices?

Chill fully, use a sharp knife rather than a spatula, and wipe the blade clean between every single cut. That one habit does more than anything else.

Can I halve the recipe?

Yes — halve everything and use an 8x8 inch dish. Chill time stays the same.