1In large saucepan melt butter over low heat. Add marshmallows and stir until completely melted. Remove from heat.
add the crushed oreos. Stir until well coated.
Using buttered spatula or wax paper evenly press mixture into 13 x 9 x 2-inch pan coated with cooking spray. Cool. Cut into 2-inch lumps of coal.
2just like rice krispies treats, except Oreos! lumps of coal --another awesome Christmas idea