Oreo Tiramisu Recipe with Creamy Mascarpone Layers

Oreo tiramisu is a no-bake, layered dessert made with coffee-dipped chocolate sandwich cookies and a fluffy mascarpone cream. It borrows the chilled, creamy format of Italian tiramisu, then swaps traditional ladyfingers for Oreos for a sweeter, chocolate-forward finish.

Ingredients

1 cup (240 ml) cooled strong coffee or espresso: Brew it fairly strong so the coffee flavor remains noticeable beside the sweet cookies. Let it cool completely before dipping.
½ cup (120 ml) whole milk: Mixing milk into the coffee softens its bitterness and makes the cookie-dipping liquid less intense. Use more coffee instead if you prefer a bolder flavor.
30 Oreo cookies (about 340 g): Use regular, original-style Oreos for the most balanced sweetness and a sturdy cookie layer. Keep the filling in the cookies; there is no need to separate them.
16 oz (454 g) mascarpone cheese, cold: Mascarpone gives the cream its rich, softly tangy character. It is usually available in the specialty-cheese or refrigerated dairy section.
½ cup (60 g) powdered sugar: Sift it if it has lumps, so it blends smoothly into the mascarpone.
1 teaspoon (5 ml) vanilla extract: Vanilla rounds out the cream without taking over the coffee and chocolate flavors.
1½ cups (360 ml) cold heavy whipping cream: Choose cream with at least heavy-cream fat content; it needs to whip into stable peaks. Do not substitute ordinary milk, which will not give the filling enough structure.
1 tablespoon (5 g) unsweetened cocoa powder: For a light dusting over the top. This is optional, but it adds a pleasantly bitter contrast.
4 Oreo cookies (about 45 g), roughly chopped: For an optional crunchy garnish just before serving.

Instructions

Prepare the dish and dipping liquid. Choose an 8-inch (20 cm) square baking dish, preferably one with a lid or enough room for plastic wrap. Stir the cooled coffee and milk together in a shallow bowl wide enough to dip a cookie. If your coffee is still warm, let it cool before continuing; warm liquid softens the Oreos too quickly and can make the layers mushy.
Make the mascarpone base. Put the cold mascarpone, powdered sugar, and vanilla in a large bowl. Mix on low speed just until smooth, scraping the bowl once or twice. This should take about 1 minute. Stop as soon as there are no large lumps; beating mascarpone for too long can make it loose or grainy. If it is especially firm, let it stand at room temperature for 5 to 10 minutes before mixing, but do not leave the dairy out for an extended time.
Whip the cream. In a separate clean bowl, whip the cold heavy cream with an electric mixer on medium-high speed until it forms medium-stiff peaks, about 2 to 3 minutes. When you lift the beaters, the peak should hold its shape but curl slightly at the tip. Keep an eye on it near the end, because overwhipped cream can become grainy and eventually separate.
Fold the cream together. Stir about one-quarter of the whipped cream into the mascarpone mixture to loosen it. Add the remaining whipped cream in two portions, folding gently with a flexible spatula until no white streaks remain. Sweep around the bottom and sides of the bowl as you fold, rather than stirring briskly. The finished filling should look smooth, thick, and airy enough to spread without running.
Build the first cookie layer. Dip each Oreo into the coffee mixture for about 1 second per side, then let excess liquid drip back into the bowl. Arrange 15 dipped cookies in a single layer in the dish. Break a cookie in half if needed to fill a narrow gap. The cookies should be damp, not saturated; a prolonged soak can leave puddles and make the bottom layer collapse.
Add cream and repeat. Spread half of the mascarpone mixture evenly over the first cookie layer, reaching the corners of the dish. Dip the remaining 15 Oreos in the same quick way and arrange them on top. Spread the remaining cream over the second layer, smoothing it with an offset spatula or the back of a spoon. Cover the dish without letting the wrap touch the cream if possible.
Chill, then finish the top. Refrigerate for at least 6 hours so the cookies soften and the layers become easier to portion. For the neatest slices and more blended flavor, chill it overnight, up to about 18 hours before serving. Just before serving, dust lightly with cocoa powder and scatter on the chopped Oreos. Cut into 9 portions with a sharp knife, wiping the blade between cuts if you want cleaner edges.

Tips

Dip quickly, not like a sponge. A brief dip on each side gives the cookies enough moisture to soften during chilling. If you are unsure, dip one cookie and check its texture after a few minutes; it should be moist at the edges while still holding together.
Keep the dairy cold. Cold cream whips more reliably, and cold mascarpone is less likely to turn slack during mixing. If the kitchen is warm, chill the mixing bowl and beaters for 10 minutes before whipping.
Choose a coffee level that suits your guests. Use decaffeinated coffee for a caffeine-free option, or replace the coffee with cold milk for a kid-friendly version. Milk-only dipping tastes sweeter and less like classic tiramisu, but works well with the chocolate cookies.
Use a gentle hand with the mascarpone. Mix only until smooth, and fold rather than beat in the whipped cream. If the filling looks slightly soft, spread it carefully and give the dessert the full chilling time; do not try to fix it by whipping the mixture again.

Serving Suggestions

Serve Oreo tiramisu cold, straight from the refrigerator, when the filling is set but still soft and creamy. A small square is satisfying after a meal because the mascarpone layer is rich and the cookies are sweet. For a more polished presentation, dust the cocoa through a fine sieve right before cutting, then add the chopped Oreo garnish so it stays crisp. If you are serving a crowd, spoon portions into small dessert glasses instead of cutting the pan; this is especially useful when the layers are soft or the dish has to travel.

It pairs well with plain coffee, espresso, or unsweetened tea, which balance the dessert’s sweetness. Keep any fruit accompaniment simple: a few fresh raspberries or sliced strawberries on the side add a tart note without changing the layers. Avoid putting juicy fruit directly on top well in advance, since its liquid can make the cream watery. For a casual gathering, set out a small bowl of extra cookie crumbs and let guests add them to their own servings.

Variations

Make it without coffee: Dip the Oreos briefly in cold milk, or use a mixture of milk and a little chocolate syrup. The result is sweeter and has no coffee flavor, so it is a good choice for children or anyone avoiding caffeine. Keep the dip brief either way, since milk also softens cookies quickly.

Use a different cookie: Chocolate wafer cookies or another chocolate sandwich cookie can replace the Oreos in the same quantity by weight. The sweetness and filling may differ, so taste the mascarpone cream before assembling and reduce the powdered sugar by a tablespoon if your cookies are noticeably sweeter. For a less chocolate-heavy dessert, use plain crisp cookies, though the final flavor will be less recognizably Oreo-like.

Add a chocolate accent: Fold ¼ cup (about 40 g) finely chopped dark chocolate into the cream, or scatter a thin layer of chocolate shavings between the cookie layers. Keep the pieces small so the dessert is easy to portion. A little goes a long way because both the cookie coating and filling already contribute chocolate.

Make individual portions: Layer dipped cookies and cream in 9 small glasses or jars, breaking the cookies into pieces to fit. The same ingredients work, but you may need to adjust the number of cookies depending on the size of the containers. Cover and chill for at least 6 hours just as you would the baking dish.

Storage and Reheating

Because this dessert contains mascarpone and cream, cover it and refrigerate it within 2 hours of assembly. Keep it refrigerated at 40°F (4°C) or below, and enjoy it within 3 days for the best texture and flavor. The cookies continue to soften as the dessert sits, so the layers will be less distinct on the third day, though the dessert can still be pleasant if it has been kept cold and handled cleanly. Add cocoa and chopped-cookie garnish close to serving rather than before storage.

Oreo tiramisu is served chilled and should not be reheated. Freezing is possible, although it changes the texture of the cream and cookies. For a firmer, semifrozen dessert, wrap portions airtight and freeze for up to 1 month; thaw them overnight in the refrigerator before serving. Do not thaw it on the counter, and do not refreeze portions that have fully thawed.

Frequently Asked Questions

Does Oreo tiramisu contain raw eggs?
This version contains no eggs. Its filling is made from mascarpone, powdered sugar, vanilla, and whipped cream, so there is no raw-egg step or cooking step. That also means the dessert depends on refrigeration to keep its dairy filling cold and properly set.

Can I make it the day before?
Yes. Making it the day before is convenient and gives the cookies time to soften evenly. Cover the dish and refrigerate it for 6 to 18 hours before serving. Add the cocoa powder and chopped Oreo topping shortly before serving so the garnish remains attractive and crunchy.

Can I use cream cheese instead of mascarpone?
You can, but the taste and texture will change. Full-fat block cream cheese is tangier and firmer than mascarpone, so let it soften slightly and beat it smooth with the sugar before folding in the whipped cream. Avoid spreadable cream cheese from a tub, which can make the filling too soft. The finished dessert will taste more like a chocolate-cookie cheesecake than classic tiramisu.

Why is my mascarpone filling runny?
Common causes include warm cream, mascarpone that was overmixed, or whipped cream that never reached stable peaks. The filling may also seem soft before it has had time to chill. Refrigerate the assembled dessert for the full 6 hours before judging it. If it still does not hold a clean slice, serve it in bowls rather than trying to rewhip the assembled layers.

How long should I dip each Oreo?
About 1 second on each side is a reliable starting point. The cookies absorb liquid while chilling, so they do not need to be soft when they first go into the dish. If your coffee is very strong or the cookies are unusually thin, shorten the dip; if they are still crisp after a full overnight chill, dip slightly longer next time.

Can I leave out the coffee?
Yes. Use cold milk in place of the coffee mixture for a sweeter, chocolate-milk-style dessert. You can also use decaffeinated coffee if you want the familiar coffee taste without regular coffee. Whichever liquid you choose, keep it cool and dip the cookies briefly to avoid a soggy base.

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