Oatmeal Pie is one of those old-fashioned desserts that feels simple, sweet, and perfect for the holidays. It has a gooey brown sugar filling with cinnamon, corn syrup, melted butter, vanilla, and quick oats baked inside a flaky pie crust.
We love this pie because it has a texture that reminds us a little of Pecan Pie, but it’s made with oats instead of nuts. Serve it fully cooled with whipped cream or a scoop of vanilla ice cream for a tasty dessert that’s easy enough for Sunday dinner and special enough for Thanksgiving.
If you love this recipe, be sure to try Pecan Pie, Buttermilk Pie, and Pumpkin Pie.
DID YOU KNOW? Oatmeal pie is also called Amish oatmeal pie, and I’ve read that it was made in the South during the Civil War as a substitute for pecan pie.
Why you’ll love it + Why it works:
- Simple. Made with pantry staples and a simple unbaked pie crust.
- Tasty! Delicious served fully cooled with whipped cream or vanilla ice cream.
- Cornstarch helps the filling set. It gives the pie structure so it slices cleanly once cooled.
- Quick oats add texture. They soften into the filling while still giving each slice a hearty bite.
Oatmeal Pie Ingredients
- Unbaked Pie Crust (1 (9-inch)): Creates a buttery base that holds the rich filling. Homemade or refrigerated pie crust both work well.
- Eggs (3 large): Helps the filling set into smooth, sliceable pieces.
- Brown Sugar (1 cup): Adds rich caramel flavor and sweetness.
- Cornstarch (2 tablespoons): Thickens the filling for clean slices.
- Cinnamon (1 teaspoon): Adds warm spice that complements the brown sugar and oats.
- Salt (¼ teaspoon): Balances the sweetness and enhances the flavor.
- Corn Syrup (¾ cup): Creates the signature gooey texture while helping the filling set properly.
- Butter (¼ cup, melted): Adds richness and buttery flavor throughout the filling.
- Vanilla Extract (1 teaspoon): Enhances the sweetness and rounds out the flavor.
- Quick Oats (1 cup): Adds a soft, chewy texture that makes oatmeal pie unique. Quick oats work best for the smoothest filling.
How to Make Oatmeal Pie
PREP. Preheat the oven to 350°F.
CRUST. On a floured surface, roll out the pie crust into a circle about 12 inches in diameter. Transfer the pie dough to a 9-inch glass or ceramic pie plate. Fold the edges of the dough under and crimp all the way around.
Lightly dust the pie dough with flour then place it in the fridge as you make the filling.
BATTER. In a medium bowl stir together the brown sugar, cornstarch, cinnamon, and salt to ensure no lumps in the brown sugar.
In a separate large bowl, whisk the eggs. Whisk the sugar mixture, corn syrup, melted butter, and vanilla extract into the eggs until combined. Stir in the oats.
BAKE. Pour the batter into the pie crust (Homemade Pie Crust is our fav). Bake the pie for 45-55 minutes or until the top is set and the middle no longer wobbles when given a nudge.
COOL. Remove from the oven and cool fully before serving.
Serve this pie with Homemade Whipped Cream, Caramel Sauce, Chocolate Fudge Sauce, other flavors of ice cream, chopped nuts: pecans or walnuts would be delicious, or mix in some raisins.
Kristyn’s Recipe Tips
- Chill the prepared pie crust while mixing the filling to help it hold its shape during baking.
- Mix the brown sugar thoroughly with the dry ingredients to prevent lumps in the filling.
- Check the pie at the 45-minute mark and loosely cover the crust with foil if it’s browning too quickly.
- Let the pie cool completely before slicing so the filling has time to fully set.
Oatmeal Pie Recipe
Video
Ingredients
- 1 (9-inch) unbaked pie crust
- 3 large eggs
- 1 cup brown sugar
- 2 tablespoons cornstarch
- 1 teaspoon cinnamon
- ¼ teaspoon salt
- ¾ cup corn syrup
- ¼ cup butter, melted
- 1 teaspoon vanilla extract
- 1 cup quick oats
Instructions
- Preheat the oven to 350°F.
- On a floured surface, roll out the pie crust into a circle about 12 inches in diameter.
- Transfer the pie dough to a 9-inch glass or ceramic pie plate. Fold the edges under and crimp all the way around.
- Lightly dust the pie dough with flour then place it in the fridge as you make the filling.
- Whisk the eggs in a large bowl.
- In a separate bowl stir together the brown sugar, cornstarch, cinnamon, and salt to ensure no lumps in the brown sugar.
- Whisk the sugar mixture, corn syrup, melted butter, and vanilla extract into the eggs until combined.
- Stir in the oats.
- Pour the batter into the pie crust.
- Bake the pie for 45-55 minutes or until the top is set and the middle no longer wobbles when given a nudge.
- Remove from the oven and cool fully before serving.
Notes
- Chill the prepared pie crust while mixing the filling to help it hold its shape during baking.
- Mix the brown sugar thoroughly with the dry ingredients to prevent lumps in the filling.
- Check the pie at the 45-minute mark and loosely cover the crust with foil if it’s browning too quickly.
- Let the pie cool completely before slicing so the filling has time to fully set.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Recipe FAQ
Oatmeal pie can be baked ahead of time, which is great for the holidays. Cover and store in the refrigerator for up to 3 days.
Freeze the pie by covering tightly and placing it in a freezer-safe bag for up to 2 months.
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Collections
This recipe was first shared November, 2019.
Sounds more like unhealthy, corn syrup pie😬
This oatmeal pie is the best! It’s such a comforting and delicious treat, perfect for the fall!! Thank you!
this recipe is my favorite pie to make in the fall! the cinnamon in it makes me feel warm and cozy! thank you so much for sharing this amazing recipe!
Loved the texture of this pie! So delicious and goes great with vanilla ice cream.
Yay! So glad you enjoyed the pie.
How can I fix a dry oatmeal filling after it bakes? I had to substitute maple syrup for Keri (stores didn’t have any) my pie filling is dry. Can it be fixed before I est it?
You know, I’m not totally sure. I haven’t ever used maple syrup for this recipe. The texture of maple syrup is quite different than corn syrup, so I imagine that had something to do with it being dry. I’d probably suggest trying again or just serving with a generous amount of whipped cream or ice cream. 😉
I’m not a “bowl of oatmeal” fan so I wasn’t sure about as a pie, but I have to say it was so good. It’s also an easy recipe to make, especially if you use a premade pie crust.
If you like pecan pie you will lIke this pie as well. Its goOey and taste like caramel with a oatmeal topping.
Oh my, this is incredibly gooey & good!! By the title, I was unsure what I’d think, but I will definitely make this again.