4-Ingredient Oreo Cheesecake Bars are the ultimate lazy-day dessert: creamy cheesecake, crunchy Oreo pieces, and a buttery cookie crust—all from just four simple ingredients. You get the flavor of a classic cookies-and-cream cheesecake, but in easy-to-serve bar form that’s perfect for parties, potlucks, or late-night cravings.

This recipe skips the complicated steps and long ingredient lists. Oreos do double duty as both the crust and the cookie pieces in the filling, while cream cheese and sweetened condensed milk create a smooth, rich cheesecake layer that bakes up beautifully in the oven.

Perfect for busy days, beginners, or anyone who wants maximum flavor with minimal effort, these 4-Ingredient Oreo Cheesecake Bars are the kind of dessert that looks impressive but comes together in just a few simple steps.

Why You’ll Love This Recipe

Only 4 Ingredients – Oreos, butter, cream cheese, and sweetened condensed milk. That’s it.
Ultra Creamy Texture – The condensed milk keeps the cheesecake silky and rich.
Cookies-and-Cream Flavor – Oreo crust plus Oreo pieces in every bite.
Perfect for Sharing – Easy to slice into bars for parties, lunch boxes, or trays.

Ingredients

24 Oreo cookies, divided (about 18 for crust, 6 for chunks)
4 tbsp unsalted butter, melted
16 oz (450 g) cream cheese, softened
1 can (14 oz / 400 g) sweetened condensed milk

(4 ingredients total)

Instructions

Prep the Pan and Oven
Line an 8-inch (20 cm) square baking pan with parchment paper, leaving an overhang on two sides for easy lifting.
Preheat your oven to 325°F (165°C).

Make the Oreo Crust
Crush about 18 Oreo cookies into fine crumbs (use a food processor or a zip-top bag and rolling pin).
In a bowl, combine Oreo crumbs and melted butter. Stir until the crumbs are evenly moistened.
Press the mixture firmly into the bottom of the prepared pan to form an even crust. Set aside.

Prepare the Cheesecake Filling
In a mixing bowl, beat softened cream cheese until smooth and creamy, about 1–2 minutes.
Pour in the sweetened condensed milk and beat again until the mixture is smooth and well combined, scraping the bowl as needed.

Add Oreo Pieces
Roughly chop or break the remaining 6 Oreo cookies into small chunks.
Fold the Oreo chunks gently into the cheesecake mixture.

Assemble and Bake
Pour the Oreo cheesecake batter over the prepared crust, smoothing the top with a spatula.
Bake at 325°F (165°C) for 25–30 minutes, or until the edges are set and the center is just slightly jiggly.
Remove from the oven and let cool completely at room temperature.

Chill and Slice
Once cooled, refrigerate the pan for at least 2 hours (or until fully chilled and set).
Lift the cheesecake out using the parchment overhang, place on a cutting board, and slice into bars or squares.

Serve
Serve chilled. Store leftovers covered in the fridge.

Nutritional Information

(Approximate per bar, 1 of 16)

Calories: ~230
Protein: 4g
Fat: 14g
Carbohydrates: 22g
Sugar: 18g
Fiber: 0–1g

Tips for Success

Use Room-Temperature Cream Cheese – This makes the filling smooth and lump-free.
Don’t Overbake – A slight jiggle in the center is okay; it firms up as it chills.
Chill Fully Before Slicing – Cold bars cut more cleanly and hold their shape better.
Crust Tip – Press the crust firmly (use the bottom of a glass) so it doesn’t crumble when cutting.

Why This Recipe Works

Sweetened condensed milk replaces multiple ingredients (like sugar, cream, and sometimes eggs) and creates a thick, silky cheesecake texture with very little effort. Oreos provide both the base and the mix-ins, giving you layers of chocolate cookie crunch and cream filling in every bite without needing extra chocolate or sugar.

With only four ingredients and minimal steps, these 4-Ingredient Oreo Cheesecake Bars deliver creamy cheesecake richness, cookies-and-cream flavor, and a satisfying crunch—all in a simple, no-fuss recipe that’s easy to memorize and even easier to love.