I have used 9-inch by 9-inch baking pan. If you want a thicker fudge, use a smaller size pan. Line your baking pan with parchment paper and keep this aside.
Roughly break the cookies into chunks and keep them aside. Reserve 3 to 4 cookies as garnish.
18 Oreo cookies
Melt chocolate and condensed milk using the double boiler method until the mixture becomes smooth when whisked. Alternatively, heat the mixture in the microwave at 20-second intervals until the chocolate has completely melted.
400 grams White chocolate (compound or chips, 14 oz), 1 can Condensed milk (Milkmaid) 14 oz
Add the oreo cookie chunks to this mixture. Mix well and pour it into the prepared baking pan. Garnish with additional oreo cookie chunks on top - gently press them into the fudge mixture.
Refrigerate for at least 1-2 hour, and then, using a sharp knife, cut them into pieces of desired shape and size.
This oreo fudge is one of the best make-ahead desserts for holidays, parties, picnics, or special occasions.