This 4-ingredient Amish peanut butter pie is the kind of dessert that feels like it’s been in the family forever—because in many Midwestern farm communities, it has. The story goes that Grandma Ruth would whip this up every Sunday after church: a flaky crust, a sweet, creamy peanut butter filling, and nothing fussy or complicated.
It’s pantry-based, budget-friendly, and so quick to assemble that you can have it chilling while you make coffee. The entire pan tends to vanish in minutes, which is exactly what you want from a simple, homey pie like this.Homestyle peanut butter pie on a kitchen counter
Serve this Amish peanut butter pie well-chilled, sliced into modest wedges since it’s quite rich. I like it with hot coffee or strong black tea to cut the sweetness, or a cold glass of milk if you’re leaning into the old-fashioned Sunday-supper vibe.
A few salted roasted peanuts scattered over each slice right before serving add a nice crunch, and if you want to stretch the dessert for a crowd, pair each piece with a scoop of vanilla ice cream or a spoonful of lightly sweetened whipped cream.
4-Ingredient Amish Peanut Butter Pie
Servings: 8
Ingredients
1 (9-inch) pie crust, unbaked or refrigerated, fitted into a ceramic pie plate
1 cup creamy peanut butter
1 cup powdered sugar, plus extra for dusting if desired
1 1/2 cups whole milk Measured peanut butter pie ingredients on a countertop
Directions
Preheat your oven to 375°F (190°C). Place the pie crust into a 9-inch ceramic pie plate, gently pressing it into the bottom and up the sides. Crimp or flute the edges as you like, then prick the bottom of the crust all over with a fork to help prevent puffing.
Blind-bake the crust: Line the crust with a piece of parchment paper or foil, then fill with pie weights, dried beans, or uncooked rice. Bake for 12–15 minutes, until the edges are just starting to turn golden.
Carefully remove the weights and parchment, then return the crust to the oven for another 8–10 minutes, or until the bottom is dry and lightly golden. Let the crust cool completely on a rack before filling.Blind-baked pie crust cooling on a rack
While the crust cools, make the peanut butter mixture. In a medium bowl, combine the peanut butter and powdered sugar. Use a fork or a sturdy spatula to mash and stir until the mixture is evenly combined and crumbly, with no visible streaks of dry sugar.
Sprinkle about half of the peanut butter–powdered sugar mixture evenly over the bottom of the cooled pie crust. Use your fingers to gently break up any large clumps so you have an even, pebbly layer. This will give the pie that classic Amish peanut butter “crumb” texture in each bite.Crumbly peanut butter sugar mixture in a mixing bowl
In the same bowl (no need to wash it), add the remaining peanut butter mixture and pour in the milk. Whisk slowly at first to avoid splashing, then more vigorously, until the peanut butter mixture is fully dissolved into the milk and you have a smooth, creamy filling with no lumps.
Take your time here; the smoother this mixture, the silkier your finished pie will be.
Carefully pour the peanut butter–milk filling over the crumb layer in the crust. If any crumbs float up, that’s fine—they’ll settle as the pie chills. Gently tap the pie plate on the counter a few times to release any air bubbles and to level the surface.Creamy peanut butter filling being poured into pie crust
Transfer the pie to the refrigerator and chill, uncovered, for at least 4 hours, or until the filling is fully set and slices cleanly. For the most “Grandma Ruth Sunday” texture, chill it overnight; the filling will firm up and the flavors will meld.
Just before serving, you can lightly dust the top with a little extra powdered sugar for a soft, old-fashioned finish if you like. Slice with a sharp knife, wiping the blade between cuts for neat slices.
Serve cold, straight from the ceramic pie plate on the kitchen counter, just the way it would be after church in a busy farmhouse kitchen.Slice of peanut butter pie plated with coffee
Variations & Tips
For a slightly lighter flavor, you can use 2% milk instead of whole milk, though the filling will be a bit less rich and may be slightly looser; chill thoroughly before slicing. If you prefer a stronger peanut flavor, increase the peanut butter to 1 1/4 cups and add powdered sugar a tablespoon at a time until you reach a crumbly consistency that still blends smoothly with the milk.
Crunchy peanut butter can be used for added texture, but be sure to break up the crumb layer well so it spreads evenly in the crust. A pinch of salt (from your pantry, not counted in the four core ingredients) intensifies the peanut flavor without making the pie taste salty.
For a chocolate twist that still respects the four-ingredient spirit, serve each slice with a drizzle of chocolate syrup rather than adding any new ingredients to the filling itself.
Food safety tips: Always bake the pie crust fully; an underbaked crust can stay doughy and unpleasant under a creamy filling. Let the crust cool completely before adding the milk-based filling to avoid condensation and a soggy bottom.
Use fresh milk that has been kept refrigerated at 40°F (4°C) or below, and return the pie to the refrigerator promptly after serving—do not leave it at room temperature for more than 2 hours. Store leftovers covered in the refrigerator and eat within 3 days for best quality and safety.