Creating Heart-Shaped Rice Krispie Treats is a fun and easy process. Just follow these steps:

1. Prepare the Pan: Grease a 9×13-inch baking dish with butter or cooking spray to prevent sticking. Set aside.
2. Melt the Butter: In a large saucepan, melt the butter over low heat.
3. Add Marshmallows: Once the butter is melted, add the marshmallows to the pan. Stir continuously until fully melted and smooth.
4. Add Vanilla: Remove the saucepan from heat and stir in the vanilla extract. If desired, add a few drops of food coloring to achieve your preferred shade.
5. Combine Cereal: Gradually add the Rice Krispies cereal to the melted marshmallow mixture. Stir until the cereal is evenly coated.
6. Transfer to Pan: Pour the mixture into the prepared baking dish. Use a spatula to press it firmly into an even layer.
7. Cool: Allow the mixture to cool for about 30 minutes, or until set.
8. Cut into Hearts: Once cooled, use a heart-shaped cookie cutter to cut out shapes from the Rice Krispie treat mixture.
9. Decorate: Place the heart-shaped treats on a serving platter and decorate with sprinkles or heart-shaped candies as desired.

These simple steps will guide you in creating these delightful treats effortlessly!