1-First Step: Prepare Your Workspace and Pan
Start with mise en place for smooth sailing. Grease an 8×8-inch pan lightly with butter or oil. Line it with parchment paper, leaving overhang for easy removal. This prevents sticking and makes cutting clean. Set aside. Room temperature ingredients mix best, so let cream cheese and butter soften for 30 minutes if needed. Pro tip: Chill your mixing bowl for firmer fudge later.

2-Second Step: Crush the Oreo Cookies
Place 36 Oreo cookies in a food processor. Pulse until fine crumbs form, about 4 cups total. No processor? Put cookies in a zip-top bag and crush with a rolling pin. Work quickly to keep crumbs fresh. These bits give your Oreo fudge that signature crunch. Avoid large chunks for even texture; sift if needed. Gluten-free Oreos work here for dietary tweaks.

3-Third Step: Mix the Creamy Base
In a large bowl, beat 8 oz softened cream cheese, 1 lb powdered sugar, and 1/2 cup softened unsalted butter. Use a hand mixer on medium speed for 2-3 minutes until smooth and fluffy. Scrape sides often. This base holds everything together without baking. Taste and add vanilla extract if desired for extra depth. Full-fat cream cheese yields the creamiest Oreo fudge with condensed milk alternatives not needed here.

4-Fourth Step: Combine and Press into Pan
Fold in Oreo crumbs and 1 cup mini semi-sweet chocolate chips gently. Use a spatula to mix until uniform. Do not overmix to keep crunch. Press firmly into the prepared pan with wet hands or spatula back. Smooth the top evenly. This step packs the easy fudge tight for perfect slices.

5-Fifth Step: Make the White Chocolate Topping
Melt 12 oz white chocolate chips with 1/4 cup heavy cream in a microwave-safe bowl. Heat in 20-second bursts, stirring between, or use a double boiler on low. Stir until glossy and smooth, about 2 minutes. Pour over fudge base and spread evenly. Tap pan to remove bubbles.

6-Final Step: Chill, Cut, and Serve
Refrigerate for 2-4 hours until firm. Lift out using parchment, then cut into 16-20 squares. Serve chilled for best texture. Dust with extra powdered sugar or top with crushed Oreos. Store as detailed later. This Oreo fudge shines at parties or as a quick treat. Total time fits busy schedules.