- In a large skillet, melt butter over medium heat. Once butter is melted, add marshmallows and marshmallow fluff to the skillet. Stir constantly over medium-high heat until they are completely melted and smooth.
- Add 5-8 drops of green food coloring. You can add more or less to achieve the desired color. Stir well.
- In a large bowl, quickly combine the melted marshmallow mixture with the Rice Krispies cereal until very well mixed. The mixture will be thick, you’ll want to work quickly because it will start to set as it cools.
- Press rice Krispy mix evenly into a 9×13 greased baking dish.
- Place into refrigerator for at least 15 minutes or until firm. Once firm, remove them from the refrigerator and cut them into 3 X 4 -inch squares.
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In a small microwavable safe-bowl, combine the dark chocolate chips with vegetable oil and mix until all chocolate chips are well coated in oil. Microwave for 30 second intervals, stirring between each until chocolate is melted and smooth. Do not overheat or mix with water, this will cause the chocolate to seize and be chunky.
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Dip the top inch of each rice Krispy treat into the melted chocolate and place them on a greased cooling rack or another non-stick surface. It may take a few minutes for the chocolate to become firm, you can put them in a refrigerator to speed up this process.
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Using your black or brown icing, make small dots where you want the eyes to be and stick candy eyes to the dots of icing. Use the same icing to add a mouth under the eyes.
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Cut your tootsie rolls in half and use the icing to stick them to the sides of your Frankenstein heads.
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Once the icing has set, serve and enjoy!