1-First Step: Prepare Your Ingredients Start by gathering all your ingredients and tools to make the process smooth. Measure out 3 cups of mini marshmallows, ½ cup whole milk, 1 ½ cups heavy cream, 1 ½ cups graham cracker crumbs, ½ cup melted butter, and ½ cup creamy peanut butter. This mise en place helps busy parents and working professionals stay organized and avoid any last-minute rushes.

2-Second Step: Make the Filling Melt the 3 cups mini marshmallows with ½ cup whole milk in a saucepan over low heat, stirring constantly until the mixture is smooth and fully combined; this takes about 5 minutes to prevent burning. Once done, remove from heat and let it cool for 30 minutes, allowing the flavors to meld while you prepare the other parts.

3-Third Step: Whip the Cream In a separate bowl, whip the 1 ½ cups heavy cream to soft peaks using a hand mixer or whisk; this adds airiness to the filling and takes about 2-3 minutes. Gently fold the whipped cream into the cooled marshmallow mixture until evenly incorporated, creating a light and creamy base that’s the heart of the pie. For more ideas on whipped cream, check out our guide on how to make perfect whipped cream.

4-Fourth Step: Form the Crust Mix the 1 ½ cups graham cracker crumbs with ½ cup melted butter until the crumbs are evenly coated; this ensures a sturdy crust. Press the mixture firmly into a 9-inch deep pie pan to cover the bottom and sides, using the back of a spoon for an even layer that will hold up the filling nicely.

5-Fifth Step: Assemble the Pie Spread the marshmallow filling evenly over the prepared crust, smoothing it out with a spatula for a professional look. Melt the ½ cup creamy peanut butter in the microwave or on the stove until it’s pourable, then drizzle it over the top using a pastry bag or spread it with a knife for that classic swirl effect.

6-Final Step: Chill and Serve Refrigerate the pie for at least 2 hours or overnight until it’s fully set, which helps the flavors develop and makes slicing easier. Serve it chilled, perhaps with a side of fresh berries for added freshness, and enjoy the creamy texture that makes this pie a hit at parties. With prep at 15 minutes and total time of 2 hours 15 minutes, it’s ideal for baking enthusiasts planning special occasions.