Melt butter in a large saucepan over low heat.

Add marshmallows and stir until melted.

Remove from heat and add Rice Krispies Cereal

Cover 9x13 pan with wax paper and lightly spray with non-stick cooking spray.

Spread mixture over pan and push down with spatula or hands.

**Tip: I spray my hands with cooking spray to press mixture into pan.

Use ghost cookie cutter to cut out Rice Krispies treats

Place chocolate in bowl and microwave for 30 seconds. Keep heating in 30 second intervals until chocolate is melted.

Spread chocolate over Rice Krispies ghosts and add candy eyes and sprinkles if desired.