Start out be getting everything you need for treat making gatherd into one place.
Use a little butter or some non-stick cooking spray to pre-grease your cookie cutter, spatula and pan
To melt your butter and marshmallows you can use the microwave instructions below or the stovetop instructions in the article above.
Toss together 4 tbs of butter and 16 oz of marshmallows in your microwave safe bowl or dish.
Pop those into the microwave and heat them up for 30 - 60 seconds.
Take the bowl out of the microwave and stir the butter and marshmallows together.
Pop them back in the microwave and heat them for another 30 seconds.
Take them out again and stir them up well.
Keep heating for 30 seconds and then stirring until you have successfully melted your marshmallows and butter together.
Take your pink or red food coloring and stir some into your marshmallow mixture. Add a little more than you desire the end color to be as it will lighten a little when the cereal is mixed in.
Take 6 cups of rice krispie cereal and slowly dump some into your marshmallows. Stir in in well, then add some more. Continue this until all the cereal is throughly mixed in.
Take your pre-greased pan and add your pink cereal and marshmallow mixture to it.
Gently press the mixture down in the pan. You want it to be about the same thickness across the entire pan.
Wait about 30 minutes so the treats can cool some and then use your heart shaped cookie cutter to cut out individual treats.