Place marshmallows and butter in a large pot or dutch oven.
10 ounces mini marshmallows, 1/4 cup butter
Heat on medium/low heat, stirring frequently until mixture is completely melted and smooth.
Remove from heat and pour rice krispies into the melted marshmallows.
6 cups Rice Krispie cereal
Fold them in to the marshmallows, mixing until all the cereal is coated with the marshmallow mixture.
Press the cereal mixture in an even layer into a parchment lined 13×9 inch baking dish or other rimmed large pan and allow to cool completely.
Option 1 For Cutting Hearts: Once cooled remove the treats from the pan and cut out hearts with a buttered 3″ cookie cutter. Set treats to the side to be decorated.
Option 2 For Cutting Hearts: Line your surface with wax paper or parchment paper. Butter your hands and the cookie cutter. Working quickly press cereal mixture into the cookie cutter to form hearts. Continue with remaining cereal mixture.
Place cooled heart shape treats on the layer of wax paper, giving yourself plenty of room to work.
Working with one color at a time, place candy melts in a microwave-safe bowl.
1/2 cup white candy melts, 1/2 cup pink candy melts, 1/2 cup purple candy melts, 1/2 cup blue candy melts, 1/2 cup orange candy melts, 1/2 cup green candy melts, 1/2 cup yellow candy melts
Microwave in 30-second intervals, stirring between each interval. Continue heating until chocolate is melted and smooth.
Place the melted chocolates in a piping bag and cut off the end to create a small hole.
Pipe melted chocolate around the edge of each Rice Krispie treat, outlining the heart shape. Once the outline is finished, fill it in with more melted chocolate. Smooth with a knife to create an even finish.
Allow to cool completely. Repeat with additional colors until all your treats are coated.
Using an edible marker, write your messages to the chocolate coating. The great thing about tracing it with the marker, versus doing it freestyle, is that if you make a mistake, you can just wipe it off with a moist paper towel and try again.
Edible marker
Melt red or pink candy melts and place them in a piping bag. Cut a small hole in the end of the piping bag, then trace the letters with melted candy.
Give the chocolate on top of the treats some time to cool before serving or storing.
Enjoy!