Prep Your Baking Dish First things first, prepare a 9x11 baking pan by coating it with butter. This ensures that your marshmallowy popcorn doesn’t stick and makes it easier to pop out those perfectly shaped treats later.
In a large saucepan or pot, melt your butter over medium heat. Stir it constantly so it doesn’t burn, and once it’s fully melted, get ready for the marshmallow fun!
Add your 10-ounce bag of marshmallows into the pot with the melted butter. Stir continuously until the marshmallows melt down into a smooth, sticky mixture. The smell will have you drooling already!
Pop the Popcorn While the marshmallows are melting, pop your two bags of microwavable popcorn. Once they’re done, transfer the popcorn to a large bowl and take a few moments to remove any unpopped kernels. Trust me, no one wants to bite into one of those!
Combine Popcorn and Marshmallow Mixture Once your marshmallow mixture is completely melted, pour the popped popcorn into the pot. Stir it all together until every kernel is coated in that gooey marshmallow goodness.
Add the Mini Marshmallows and White Chocolate Chips Now for the fun part—add in your mini marshmallows and white chocolate chips. These little additions make the treats even more special with soft pockets of marshmallow and creamy bites of chocolate. Stir everything together gently, making sure it’s all evenly distributed.
Spread in the Pan Pour the popcorn and marshmallow mixture into your prepared baking dish. Use buttered hands or a buttered spoon to spread and flatten it out evenly. It’s going to be sticky, but that’s part of the fun!
Top with Sprinkles For that final touch of fun, sprinkle the top with colorful sprinkles. This not only makes the treats look festive but adds a little crunch and sweetness.
Let It Set. Cover the dish and let your treats set at room temperature for a couple of hours. This gives the marshmallow time to firm up and hold everything together.
Then, once the treats have set, cut them into squares or rectangles and get ready to enjoy. They’re sweet, crunchy, and oh-so-satisfying!