Line a baking sheet with parchment paper and set aside.
Place Oreo cookies in food processor, including filling, and pulse until fine crumbs form.
Add softened cream cheese and pulse until mixture is evenly combined.
Scoop mixture 1 Tablespoon at a time and roll into balls with your hands.
Place truffle balls on prepared baking sheet and freeze for 30 minutes.
After removing truffles from the freezer, melt white chocolate in a heat safe bowl for 30 seconds. Stir and return to microwave in 15 second increments, stirring until smooth and completely melted. Cool slightly before dipping truffles.
Using a fork, dip truffles one at a time into melted chocolate. Spoon extra chocolate over the top to ensure even coverage. Gently tap off excess chocolate and place truffle on baking sheet. To avoid black cookie crumbs from soiling the white chocolate, use a clean fork for each truffle.
Drizzle truffle balls with remaining white chocolate to resemble a wrapped mummy.
Use red food coloring gel to dot eyes on the mummy truffles.
Freeze mummy truffles for 5 minutes to set.
Place truffles in an airtight container then store in the refrigerator up to 2 weeks.