Line a baking sheet with parchment paper and set aside.

Break about 25 Oreos (more or less for your preference) into coarse pieces (I broke mine into quarters and thirds). Place them in a dish and set aside.

Set aside 8 ounces of the melting chocolate in a small, microwave-safe bowl. Add the rest of the melting chocolate to a large, microwave-safe bowl and melt it in 30-second intervals in the microwave until smooth.

Add the Oreo pieces to the large bowl of melted chocolate and stir gently to coat.

Once the Oreos are coated, scoop the Oreo mixture onto the baking sheet and spread evenly.

Pour about 7 of the 8 ounces of melted chocolate over the top of the Oreo mixture on the baking sheet. Spread it evenly to coat.

Add the broken Oreo pieces on top of the bark. Sprinkle the M&M’s on, as well.

Take the last ounce of melting chocolate and drizzle it over the tops of the Oreos and M&M’s.

Set the baking tray in the refrigerator for 15 minutes to harden.

Remove the baking tray and break with your hands or cut into pieces.

Serve at room temperature or chilled.