• Prepare two quarter-cookie sheets with parchment paper and spray sides with non-stick spray. ( I use Crisco spray)
  
• Empty the box of cereal into a large pan and set aside. Melt butter and marshmallows on low, stirring constantly.
  1 12 oz Box of Kelloggs Rice Krispie Cereal
  
• Pour mixture over cereal and stir gently with a wooden spoon. Spread hlaf the mixture into each cookie sheet.

  Grease. hands with butter and press mixture out to sides of pan. Smooth the top by pressing lightly into the cereal mixture.

  Set aside to cool. Cover with plastic wrap.
  

Filling

• Use electric mixer to cream butter and sugar together until fluffly. Add marshmallow creme and beat until well combined. Add vanilla flavoring.
  2 Cups Confectioners Sugar, 2 Sticks Butter, softened at room temp (not melted), 1 7 oz Jar Marshmallow Creme, 2 Tsp Vanilla Flavoring
  
• Spread over ONE of the pans of Rice Krispies.
  
• Use the other pan of Rice Krispies to place on top of the pan with the filling. Slip hand under the parchment paper keeping the whole sheet intact and flip over it on top to the top of the pan with the filling.
  
• Remove the parchment paper.
  
• Cool, and cut into small bars. These are rich! They will cut neater if you chill in the frig for a while. The filling won't squish out of the bars as much as they would if you try to cut at room temperature.