Using a nonstick cooking spray, lightly grease the parchment paper. Turn off the heat and stir in the marshmallows. Prepare the baking pan with parchment paper. Pour into glasses. Add the butter to a medium saucepan over medium-high heat. Yield: 2 Keep stirring until the marshmallows are smooth and melted. To start with, you’ll need to melt your white chocolate with heavy cream to make a ganache. Set the baking pan aside. White chocolate ganache sounds super fancy, but it’s just white chocolate and heavy cream melted together. Frost rim of 2 milkshake glasses with frosting and dip in sprinkles. Top with whipped cream, rice krispies treats covered in sprinkles, and cherries. Rice Krispies Cereal (9 cups) Baking Chocolate (2 ounces) Heavy Whipping Cream (¼ cup) Peanut Butter (2 tablespoons) Instructions Rice Krispies. Step by Step. Once melted, stir in the brown sugar, heavy whipping cream and corn syrup. It’s so simple, and in this recipe, it gives these Rice Krispie treats … Cook until thick and syrupy while stirring frequently, about 7 minutes. 1/2 cup heavy whipping cream; 1 tablespoon powdered sugar; Rice Krispies Treats ; Instructions. The rice krispie treats will set on this baking pan. Blend together ice cream, milk and rice cereal. Stir in the salt.