Begin by separating your Oreo cookies; carefully scrape the creamy filling into a large bowl while keeping the cookie halves intact. Crush the cookies into fine crumbs.

In a mixing bowl, combine two-thirds of the crushed Oreo crumbs with melted butter and mix. Press into an 8x8-inch pan and chill for 10-15 minutes.

In a cold mixing bowl, use an electric mixer to beat the heavy cream with the reserved Oreo filling until stiff peaks form, about 3-5 minutes.

Spread the whipped filling over the chilled crust, smooth it out, and sprinkle the remaining Oreo crumbs on top.

Chill the dessert in the refrigerator for at least 3-4 hours until firmly set.