Introduction

Peanut Butter Oreo Bars combine the rich flavors of chocolate, peanut butter, and Oreos into one irresistible treat. These bars offer a perfect balance of creamy, crunchy, and sweet, making them a crowd-pleaser for any occasion. Easy to prepare, they’re a delicious dessert or snack you’ll want to make again and again.

A stack of three square dessert bars shows three layers each: the bottom layer is dark, crumbly, and textured like crushed cookies; the middle layer is thick, creamy, and light brown, resembling peanut butter filling; the top layer is a smooth, glossy dark chocolate coating. The dessert bars are set on a piece of white parchment on a white marbled surface. To the side, there is a partially visible white glass of milk and a single dark cookie with cream filling. The background is light and out of focus, emphasizing the dessert bars in the front. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

15 Oreo cookies (not double stuffed)
3 tablespoons unsalted butter (42 grams), melted
1/4 cup unsalted butter (56 grams), softened
3 tablespoons brown sugar (light or dark)
1/4 teaspoon salt (omit if using salted butter)
1 cup smooth peanut butter
1 2/3 cup powdered sugar (183 grams), sifted
6 ounces semi-sweet chocolate (170 grams) or your favorite variety
2 teaspoons shortening or 1/2 teaspoon vegetable oil

Instructions

Step 1: Line an 8×8 inch (20×20 cm) pan with parchment paper or aluminum foil, leaving an overhang around the sides for easy removal.
Step 2: Crush the Oreo cookies into fine crumbs using a food processor, or place them in a freezer bag and crush with a rolling pin.
Step 3: Mix the crushed cookies with the melted butter until evenly combined.
Step 4: Press the Oreo mixture firmly into the bottom of the prepared pan to form the crust.
Step 5: Beat together the softened butter and brown sugar until smooth and creamy.
Step 6: Add the peanut butter and salt, beating until the mixture is smooth with no lumps.
Step 7: Gradually add the powdered sugar about half a cup at a time, mixing well after each addition. The mixture should be firm and not sticky to the touch.
Step 8: Spread or press the peanut butter mixture evenly over the Oreo crust. Using wax paper can help smooth the top without sticking.
Step 9: Chop the chocolate into small pieces and place in a heatproof bowl.
Step 10: Melt the chocolate in the microwave on medium power in 45-second intervals, stirring between each, until smooth. Alternatively, melt over low heat in a double boiler.
Step 11: Stir in the shortening or vegetable oil to the melted chocolate for a smooth, shiny finish.
Step 12: Pour the chocolate evenly over the peanut butter layer and smooth the top.
Step 13: Allow the bars to set at room temperature or refrigerate until the chocolate hardens. Keep in mind refrigeration may cause slight discoloration.
Step 14: When the chocolate is mostly set (about 90%), score the top with a sharp knife where you plan to cut to ensure clean slices.
Step 15: Once fully hardened, lift the bars out of the pan using the parchment or foil overhang and cut into squares with a sharp, thin knife.

Tips & Variations

For a crunchier texture, sprinkle chopped peanuts over the peanut butter layer before adding the chocolate.
Use natural peanut butter for a more intense peanut flavor, but expect a slightly softer bar.
If you don’t have shortening, vegetable oil works well to keep the chocolate smooth and shiny.
Try different types of chocolate, like milk or dark, to customize sweetness and richness.

Storage

Store the bars in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week. Bring to room temperature before serving for the best texture. If refrigerated, you can also warm slices slightly in the microwave for a softer bite.

How to Serve

The image shows five square dessert bars stacked on a white plate with a white marbled texture surface. Each bar has three clear layers: the bottom layer is dark, crumbly, and dense like a cookie crust; the middle layer is thick, smooth, and light brown like peanut butter filling; the top layer is a thin, shiny, and dark chocolate coating. The bars have clean edges showing the layers well, and the background features a glass of milk and some milk-filled cookies blurred out. The photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use double stuffed Oreos?

Double stuffed Oreos may make the crust too sweet and softer. Regular Oreos provide the best balance for texture and flavor in this recipe.

How do I prevent the chocolate from discoloring in the fridge?

Chocolate can develop a whitish bloom when refrigerated due to condensation. To minimize this, store bars in an airtight container and allow them to reach room temperature before unsealing.

Peanut Butter Oreo Bars Recipe

Print Recipe

★★★★★

4.6 from 135 reviews

Peanut Butter Oreo Bars are a decadent no-bake dessert featuring a crunchy Oreo cookie crust, a creamy peanut butter layer sweetened with brown sugar and powdered sugar, and topped with a smooth semi-sweet chocolate glaze. These bars combine the classic flavors of peanut butter and Oreo cookies into an easy-to-make treat perfect for any occasion.

Author: Lila
Prep Time: 15 minutes
Cook Time: 0 minutes
Total Time: 2 hours (including setting time)
Yield: 16 bars 1x
Category: Dessert
Method: No-Cook
Cuisine: American

Ingredients

Scale

Oreo Crust

15 Oreo cookies (not double stuffed)
3 tablespoons unsalted butter (42 grams), melted

Peanut Butter Layer

1/4 cup unsalted butter (56 grams), softened
3 tablespoons brown sugar (light or dark)
1/4 teaspoon salt (omit if using salted butter)
1 cup smooth peanut butter
1 2/3 cup powdered sugar (183 grams), sifted

Chocolate Layer

6 ounces semi-sweet chocolate (170 grams), chopped
2 teaspoons shortening (or 1/2 teaspoon vegetable oil)

Instructions

Prepare the Pan: Line an 8×8 inch (20×20 cm) pan with parchment paper or aluminum foil, leaving an overhang on the sides to help lift the bars out later.
Crush Oreos: Crush the Oreo cookies, including the filling, into fine crumbs using a food processor or by placing them in a freezer bag and crushing with a rolling pin.
Make Oreo Crust: Mix the crushed Oreos with the melted butter until evenly combined.
Press Crust: Press the cookie crumb mixture firmly into the bottom of the prepared pan to form an even layer.
Mix Peanut Butter Layer: Beat the softened butter and brown sugar together until smooth and creamy.
Add Peanut Butter and Salt: Beat in the smooth peanut butter and salt until the mixture is lump-free and uniform.
Incorporate Powdered Sugar: Gradually mix in the sifted powdered sugar about half a cup at a time, continuing to beat until the mixture is thick and no longer sticky to the touch.
Spread Peanut Butter Layer: Spoon the peanut butter filling evenly over the Oreo crust, then spread and press it down into a smooth, even layer; using wax paper can help achieve an even surface.
Melt Chocolate: Chop the semi-sweet chocolate finely and place it in a heatproof bowl. Melt the chocolate in the microwave on medium power in 45-second intervals, stirring between each, or melt over a double boiler on low heat.
Add Shortening: Stir the shortening into the melted chocolate to achieve a smooth, glossy finish.
Top with Chocolate: Pour the melted chocolate evenly over the peanut butter layer and smooth the top with a spatula.
Set Chocolate Layer: Allow the chocolate to harden at room temperature or refrigerate to speed up the process. Note refrigeration may cause slight discoloration.
Score Before Full Hardening: When the chocolate is about 90% set, score the surface with a thin, sharp knife where you plan to slice the bars to make cutting easier.
Remove and Slice: Once fully hardened, lift the bars out of the pan using the parchment or foil overhang. Place on a cutting board and slice into bars with a sharp, thin knife.

Notes

Using parchment paper or foil with an overhang makes removing the bars easier.
Ensure peanut butter mixture is not sticky before spreading to prevent a messy top layer.
Microwaving chocolate on medium power prevents burning; stirring frequently ensures even melting.
Shortening helps keep the chocolate layer glossy and firm at room temperature.
Bars can be stored at room temperature or refrigerated. Refrigeration may discolor the chocolate but will firm the bars faster.

Keywords: Peanut Butter Oreo Bars, no bake dessert, peanut butter bars, Oreo crust, chocolate peanut butter bars