01 -
Start by lining a 9x9 inch square baking pan with parchment paper, making sure to leave some overhang on the sides to help lift out your finished treat later. This step is crucial for easy removal, so don't skip it!
02 -
In a large saucepan over low heat, melt the butter until it's completely liquid. Add the mini marshmallows and stir continuously until they're fully melted and the mixture is smooth and glossy. Keep the heat low to prevent burning! Continue cooking for exactly two minutes, stirring the whole time, then remove from heat. Quickly add all the Lucky Charms cereal and fold it in until every piece is coated with the marshmallow mixture.
03 -
Transfer your cereal mixture to the prepared pan while it's still warm and pliable. Using a spatula slightly dampened with water (to prevent sticking) or clean hands, press the mixture firmly and evenly into the pan. Make sure to really pack it down to create a solid foundation for your cheesecake layer. Set this aside and allow it to cool completely before moving on to the next step.
04 -
In a large mixing bowl, beat the room temperature cream cheese with lemon juice until it's completely smooth and free of lumps. Switch to an electric mixer and gradually add the heavy whipping cream, beating until the mixture starts to thicken. Add the sugar and continue beating until you've got a thick, fluffy texture that holds its shape. Finally, add a few drops of green food coloring and mix until you achieve that perfect St. Patrick's Day shade!
05 -
Once your cereal base has completely cooled and set, pour the green cheesecake mixture on top and smooth it out with a spatula until it's even. Pop the whole pan into the freezer for at least 4 hours, though overnight is even better to ensure it's fully set. While you're waiting, go through the remaining Lucky Charms in the box and separate out those colorful little marshmallows for the topping!
06 -
Just before you're ready to serve, take the pan out of the freezer and sprinkle the reserved Lucky Charms marshmallows and any additional sprinkles over the top. Use the parchment paper overhang to lift the entire dessert out of the pan, then slice into squares with a sharp knife. For easier cutting, you can let it thaw for about 5-10 minutes first. Serve immediately while still cold and firm!