Melt butter and mix Marshmallows together. Either on medium on the stove top. Or in 30 second increments in the microwave.
Once melted, add and stir in the green food coloring
Add and stir in Rice Krispies cereal. Make sure that mixture is evenly distributed.
Spread mixture into pan with greased spatula.
Cool treats for 30 mins.
Use the cookie cutter to cut out tree shapes
Sprinkle red and green sanding sugar on the tree
Make a few strings of garland or ornaments by making lines with the gold and silver candy balls
Serve and enjoy!