Amish Oatmeal Pie

Whole baked Amish oatmeal pie with golden oat filling and a crimped pastry crust
Whole baked Amish oatmeal pie with golden oat filling and a crimped pastry crust

Amish oatmeal pie turns a short list of pantry ingredients into a rich, sweet dessert with a golden pastry edge and a soft, chewy oat filling. Brown sugar gives the pie its caramel-like flavor, while milk, eggs, and a little butter bring the filling together. There is no separate topping to make: the oats bake right into the filling.

The method is pleasantly simple. Stir the dry ingredients together, add the wet ingredients, and pour everything into an unbaked pie shell. After baking, give the pie a short rest before slicing. Serve it plain or add a small scoop of vanilla ice cream for a cool, creamy contrast.

Why this oatmeal pie is easy to make

This is a one-bowl filling with no stovetop step. You do not need to cook the oats, brown the butter, or prepare a syrup. A homemade or ready-made unbaked shell both fit the method, so you can put your effort into the pastry or keep the preparation quick.

The finished pie has a lightly textured top, a moist filling, and a crisp-looking pastry rim. The rolled oats give each bite some chew without turning the dessert into an oatmeal crumble. Keep the ingredient amounts as written for that balance of sweetness and oats.

Ingredients for Amish oatmeal pie

Brown sugar, rolled oats, milk, eggs, butter, vanilla, sugar, salt, and an unbaked pie shell

Brown sugar and sugar: Use 1¼ cups packed brown sugar and ½ cup granulated sugar. Break up the brown sugar clumps before adding the liquids so they mix evenly through the filling.

Old-fashioned rolled oats: The recipe calls for ¾ cup. Keep the flakes whole and use them straight from the package. They provide the texture that makes this pie distinctive.

Milk and eggs: Measure ¾ cup milk and beat 3 large eggs in a separate small bowl. Beating the eggs first makes it easier to combine them without leaving streaks in the filling.

Butter, vanilla, and salt: Use 3 tablespoons unsalted butter at room temperature, 1½ teaspoons vanilla extract, and ¼ teaspoon salt. The butter should be soft enough to work into the mixture; the recipe does not call for melting or browning it.

Pie shell and optional topping: You need 1 unbaked pie shell and a pie dish that fits it. Vanilla ice cream is optional. The complete measurements and printable instructions are in the recipe card below.

How to make Amish oatmeal pie

1. Prepare the oven and pie shell

Preheat the oven to 350°F. Fit the unbaked pastry into your pie dish and arrange the edge neatly around the rim. If you are using a ready-made shell already in its own dish, leave it in that dish. The filling goes into raw pastry, so there is no separate prebaking step.

An unbaked pastry shell with a crimped edge fitted into a white pie dish

2. Mix the oats and sugars

In a large mixing bowl, stir together the packed brown sugar, rolled oats, granulated sugar, and salt. Press apart any large brown sugar lumps with the back of a spoon. Once the oat flakes are distributed through the sugars, the dry mixture is ready for the wet ingredients.

Rolled oats mixed with brown sugar, granulated sugar, and salt before adding the wet ingredients

3. Beat the eggs

Crack the three eggs into a small bowl and beat them until the yolks and whites are blended. This takes only a moment, but it makes the next step easier. Have the measured milk, softened butter, and vanilla nearby so you can finish the filling without stopping to measure.

Three beaten eggs in a small bowl ready to add to the oatmeal pie filling

4. Combine the filling

Add the milk, beaten eggs, room-temperature butter, and vanilla to the oat mixture. Stir thoroughly, working the soft butter into the filling and scraping around the bowl. The mixture will be loose and pourable before baking. Do not add extra oats or flour to thicken it.

Loose brown sugar oatmeal pie filling with milk, beaten eggs, butter, and vanilla mixed in

5. Fill the shell

Pour the mixture into the unbaked pie shell. Scrape the bowl so the oats and liquid both go into the pie, then gently spread the oats evenly across the filling. Move the filled dish carefully to the oven to avoid spilling liquid over the pastry edge.

Raw oatmeal pie filling poured into an unbaked pastry shell before baking

6. Bake until the filling is set

Bake for 45–50 minutes, using that window as a guide and checking that the pie is cooked through. The surface should look set rather than visibly wet, with a golden-brown oat top and a browned pastry rim. A center that still moves like liquid needs more time. If the crust edge colors too quickly, cover just the edge loosely with foil.

Baked oatmeal pie with a set golden-brown oat surface and golden pastry edge

7. Rest before slicing

Remove the pie from the oven and let it cool for 10–15 minutes before serving. This short rest helps the filling settle and makes lifting a slice easier. A warm slice will still be soft, so support it underneath with a broad pie server.

A slice of Amish oatmeal pie on a pie server showing the oat filling and pastry base

Serving Amish oatmeal pie

A small scoop of vanilla ice cream pairs well with the warm brown-sugar filling. Whipped cream is another serving option from the original method. Keep the topping modest so the oats and pastry remain the focus. The pie is also sweet and flavorful enough to serve on its own.

A slice of Amish oatmeal pie with a small scoop of optional vanilla ice cream

The recipe card estimates eight slices, but the number depends on how you portion the pie. Its estimated total time includes the short cooling rest: allow roughly 65–75 minutes for preparation, baking, and that first rest.

Frequently asked questions

What kind of oats should I use?

Use old-fashioned rolled oats, as listed in the recipe. The ingredient amounts and baking directions are written for those flakes. For the intended texture, keep that choice rather than switching to a different oat product.

Do I bake the crust before filling it?

No. This method starts with an unbaked pie shell. Add the mixed filling directly to the raw pastry and bake them together at 350°F.

Why is the filling loose before baking?

The milk and beaten eggs make the uncooked filling pourable. That is expected. Stir it well so the oats are evenly distributed, and follow the baking step rather than adding another thickener.

How many slices does this pie make?

Eight slices is an approximate serving estimate. The original recipe did not specify a yield, and slice size will change the number of portions.

Amish oatmeal pie recipe

Whole baked Amish oatmeal pie with golden oat filling and a crimped pastry crust

Amish Oatmeal Pie

A sweet oatmeal pie with brown sugar, chewy rolled oats, and a golden pastry crust. Stir the filling together in one bowl and bake it in an unbaked pie shell.
Print Recipe Pin Recipe
Prep Time 10 minutes
Cook Time 45 minutes
Cooling 10 minutes
Total Time 1 hour 5 minutes
Course Dessert
Cuisine American
Servings 8 slices

Equipment

  • Pie dish that fits the unbaked shell
  • Large mixing bowl
  • Small bowl
  • Whisk
  • Spoon
  • Pie server

Ingredients
  

For the filling

  • 1 1/4 cups brown sugar packed
  • 3/4 cup old-fashioned rolled oats
  • 3/4 cup milk
  • 1/2 cup sugar
  • 3 large eggs beaten
  • 3 tablespoons unsalted butter room temperature
  • 1 1/2 teaspoons vanilla extract
  • 1/4 teaspoon salt

For the crust

  • 1 unbaked pie shell

To serve (optional)

  • vanilla ice cream optional

Instructions
 

  • Preheat the oven to 350°F. Fit the unbaked pie shell into a pie dish that fits the shell. Do not prebake the pastry.
    An unbaked pastry shell with a crimped edge fitted into a white pie dish
  • In a large bowl, stir together the brown sugar, old-fashioned rolled oats, sugar, and salt. Break up any large brown sugar clumps.
    Rolled oats mixed with brown sugar, granulated sugar, and salt before adding the wet ingredients
  • Beat the three large eggs in a small bowl until the yolks and whites are blended.
    Three beaten eggs in a small bowl ready to add to the oatmeal pie filling
  • Add the milk, beaten eggs, room-temperature butter, and vanilla extract to the dry mixture. Stir until fully combined, working the soft butter into the filling and scraping around the bowl.
    Loose brown sugar oatmeal pie filling with milk, beaten eggs, butter, and vanilla mixed in
  • Pour the mixture into the unbaked pie shell. Scrape in the oats and liquid, then spread the oats evenly through the filling.
    Raw oatmeal pie filling poured into an unbaked pastry shell before baking
  • Bake for 45–50 minutes, or until cooked through. The top should look set and golden brown rather than visibly wet. If the pastry edge browns too quickly, cover just the edge loosely with foil.
    Baked oatmeal pie with a set golden-brown oat surface and golden pastry edge
  • Remove the pie from the oven and let cool for 10–15 minutes. Support warm slices with a broad pie server.
    A slice of Amish oatmeal pie on a pie server showing the oat filling and pastry base
  • Serve plain or with optional vanilla ice cream. Whipped cream is another serving option from the original method.
    A slice of Amish oatmeal pie with a small scoop of optional vanilla ice cream

Notes

Yield estimate: Approximately 8 slices; the original recipe did not specify a serving count.
Timing estimate: Allow about 10 minutes for preparation, 45–50 minutes for baking, and 10–15 minutes for cooling before serving, or about 65–75 minutes total. The displayed card uses the lower end of those ranges.
Use old-fashioned rolled oats and room-temperature unsalted butter. The pie shell stays unbaked until the filling is added.
Keyword Amish oatmeal pie, brown sugar oatmeal pie, oatmeal pie

More desserts to try

For another dessert with brown sugar, try Brown Sugar Caramel Pound Cake. Or make Homemade Granny Cake when you feel like a simple cake instead of pie.