Divide the Chex mix evenly into 2 large mixing bowls (3 cups each).

Crush 10 Oreo Cookies in a food process until they are fine crumbs. Place the remaining Oreos in a ziplock bag and gently crush into large pieces.

Add half of the powdered sugar and half of the finely crushed Oreos into 2 large ziplock bags.  Set aside.

Place the white chocolate chips and half of the vegetable oil in a microwave safe bowl. Microwave in 20 second intervals, stirring after each one, until fully melted.

Follow the same process with the milk chocolate chips.

Pour the melted white chocolate chips over one bowl of the cereal.  Stir until coated with the melted chocolate.

Follow the same process with the melted milk chocolate chips and the other bowl of cereal.

Pour them separately each into prepared ziplock bags.  Seal and shake until the cereal is coated.

Spread them both onto a cookie sheet.  Gently stir together and mix in the large pieces of Oreos.

Let the chocolate set and then the muddy buddies are ready to serve and enjoy!