Oatmeal Pie

This Oatmeal Pie delivers the warm, caramelized sweetness of a pecan pie with the hearty comfort of oatmeal cookies in every single bite.

Oatmeal Pie recipe by Cheerful Cook.
Photo Credit: Cheerful Cook.

Sometimes the best desserts are the ones that remind us of simpler times, and this old-fashioned favorite proves that point perfectly.

Oatmeal Pie Recipe Highlights

  • Old-fashioned recipe most people have never tried
  • Crispy top with custardy oat-studded center
  • No mixer needed just a whisk and bowl
  • Brown sugar butterscotch flavor in every bite
  • Make-ahead friendly dessert

Ingredient Notes

Please check the recipe card below for a detailed, printable ingredient list.

Ingredients needed to make Oatmeal Pie.

PIE CRUST – Store-bought works beautifully here and saves you time. If you’re using frozen, no need to thaw first. For homemade, keep it chilled until ready to fill for the flakiest results.

EGGS – Room temperature eggs blend more smoothly, but cold ones work fine too. The four eggs create that signature custardy texture that makes this pie so special.

CORN SYRUP – Light corn syrup gives the cleanest flavor, though dark corn syrup adds deeper caramel notes if you prefer. This creates the glossy, smooth filling that sets without being too sweet.

BROWN SUGAR – Pack it firmly in your measuring cup for accuracy. Light or dark brown sugar both work, with dark adding more molasses flavor. This brings that butterscotch warmth we’re after.

BUTTER – Unsalted butter lets you control the salt level perfectly. Melt it completely and let it cool slightly before whisking in. This adds richness without making the filling greasy.

VANILLA AND SALT – Pure vanilla extract makes a difference here since the flavor really shines through. The salt balances all that sweetness and brings out the oat flavor.

ROLLED OATS – Old-fashioned rolled oats give the best texture. Quick oats work in a pinch but won’t have quite the same chew. Steel-cut oats are too hard and won’t soften properly during baking.

How To Make Oatmeal Pie

Please check the printable recipe card below for more detailed instructions.

Whisked eggs with vanilla, brown sugar, corn syrup, salt, and melted butter in a bowl.
Pie filling for oatmeal pie topped with rolled oats in a bowl.
Unbaked oatmeal pie.
Oatmeal pie.
  1. Preheat oven and prepare pie crust in pan.
  2. Whisk eggs in bowl. Add corn syrup, brown sugar, melted butter, vanilla and salt. Whisk until blended.
  3. Stir in rolled oats.
  4. Pour into crust and bake. Cool before serving.
Oatmeal Pie recipe by Cheerful Cook.
Photo Credit: Cheerful Cook.

Leftovers and Storage

STORE – Keep your Oatmeal Pie tightly covered in the refrigerator for up to 4 days. The cold temperature stabilizes the egg custard while the oat starches continue absorbing moisture, creating an even better texture by day two.

FREEZE – Wrap individual slices in plastic wrap, then aluminum foil to prevent freezer burn. The high sugar content in your Oatmeal Pie acts as a natural preservative, maintaining perfect texture for up to 2 months.

REHEAT – Warm slices for 15-20 seconds in the microwave to release those caramelized sugar aromas. The butter in the filling melts slightly, bringing back that just-baked taste without compromising the custard structure.

MAKE AHEAD – This Oatmeal Pie actually improves overnight as the oats fully hydrate and the brown sugar flavors deepen. The proteins and starches continue bonding, creating that perfect slice that holds together beautifully.

Serving Suggestions

TEMPERATURE CONTRAST – Cold whipped cream on warm Oatmeal Pie creates magic because the temperature difference makes your taste buds more alert to both textures. The cream’s fat coats your mouth, balancing the pie’s sweetness perfectly.

ICE CREAM PAIRING – Premium vanilla ice cream melts into the warm custard filling, creating pockets of creamy richness. The dairy proteins complement the egg custard while the cold-hot contrast keeps every bite interesting.

BERRY BRIGHTNESS – Fresh berries provide natural fruit acids that cut through the brown sugar sweetness. Their high water content and bright flavors reset your palate between bites of rich Oatmeal Pie.

CARAMEL HARMONY – Quality caramel sauce echoes the brown sugar notes already in your pie. The extra layer of cooked sugar adds depth without competing flavors, especially when you use salted caramel.

BOURBON ENHANCEMENT – A splash of bourbon in whipped cream brings out vanilla and caramel notes because alcohol dissolves flavor compounds that water can’t reach. Just enough to enhance, never overpower.

A slice of Oatmeal Pie with whipped cream and strawberries on a white plate.

Recipe Success Tips

UNDERSTANDING DONENESS – Your Oatmeal Pie sets from the outside in because the metal pan conducts heat to the edges first. When you see firm edges and a center that barely moves, the internal temperature has reached 175°F, perfect for a silky custard.

PROTECTING YOUR CRUST – Pie crust browns faster than filling sets because it contains less moisture. Those foil shields deflect direct heat while still allowing the bottom crust to crisp properly through the metal pan.

OAT SUSPENSION SECRET – Folding oats gently into your filling keeps them evenly distributed because vigorous stirring breaks the custard structure you’ve created. The thick mixture holds oats in place as it bakes.

Expert Tip – Cool melted butter to 110°F before adding to your egg mixture. Hot butter partially cooks egg proteins on contact, creating tiny lumps instead of the velvet-smooth Oatmeal Pie filling you want.

TEXTURE TRANSFORMATION – Room temperature serving reveals all flavor layers because cold dulls your taste perception. The custard texture shines at 70°F when proteins are perfectly set but still tender.

A fork digging into an Oatmeal Pie topped with whipped cream and strawberry.

Commonly Asked Questions

Can I Use Quick Oats Instead Of Rolled Oats?

Quick oats will work, though they change your Oatmeal Pie’s final texture. Quick oats are pre-steamed and rolled thinner, so they absorb liquid faster and break down more during baking. You’ll get a smoother, more uniform filling that’s still delicious, just without those distinct oat pieces that make each bite interesting.

What Can I Substitute For Corn Syrup?

Maple syrup works beautifully because it has similar water content and sugar concentration to corn syrup. Your Oatmeal Pie will have subtle maple notes and might brown slightly faster due to maple’s natural sugars. The filling won’t have that signature glossy sheen since corn syrup’s glucose creates that mirror-like finish, but the taste remains spectacular.

Why Did My Filling Not Set Properly?

runny filling usually means the egg proteins didn’t reach their setting temperature of 175°F. This happens with inaccurate oven temperatures or pulling the pie too early. Your Oatmeal Pie needs those edges fully set because the residual heat finishes cooking the center. An oven thermometer helps ensure accuracy since many home ovens run 25 degrees off.

Can I Make This Pie Gluten-Free?

Absolutely! The custard filling in your Oatmeal Pie is naturally gluten-free since it relies on eggs for structure, not flour. Just swap in certified gluten-free oats (processed without wheat contamination) and a quality gluten-free crust. The science stays the same, so you’ll get identical results that everyone can enjoy.

How Do I Know When The Pie Is Done?

Professional bakers watch for the “barely jiggle” test in custard pies. Your Oatmeal Pie is ready when the outer ring feels firm and the center moves as one mass when gently shaken, not in waves. That knife test works because properly set custard clings to itself, leaving just a few moist crumbs rather than wet filling.

Oatmeal Pie recipe by Cheerful Cook.
Photo Credit: Cheerful Cook.

More Easy and Delicious Recipes

Cookie Pie – warm chocolate chip cookie meets pie for the ultimate dessert mashup.

Oreo Pie – cookies and cream dreaminess with that famous chocolate crunch.

Cherry Cream Cheese Pie – tangy cream cheese filling topped with ruby-red cherries.

Sweet Potato Pecan Pie – Southern comfort combining two holiday favorites.

No Bake Cherry Pineapple Pie – fruity no-fuss favorite.

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Oatmeal Pie

Author: Maike Corbett
Prep Time: 15 minutes
Bake Time 35 minutes
Total Time: 50 minutes
Serving Size 8
This Oatmeal Pie brings all the comfort of your favorite oatmeal cookie into an easy, make-ahead dessert. Your family will request this unique treat again and again!
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Ingredients

Garnish (optional)

Instructions

  • Preheat the oven to 375° Fahrenheit. Leave a store-bought pie shell in its original tin, or press homemade pastry into a 9-inch pie plate.
  • In a medium bowl, whisk the eggs until smooth.
  • Add corn syrup, brown sugar, melted butter, vanilla extract, and salt. Whisk until fully combined.
  • Stir in the large flake oats until evenly distributed.
  • Pour the mixture into the unbaked pie crust and bake for 35 minutes, or until the edges are set and the center is just slightly jiggly.
  • Let the pie cool in the pan for at least 30 minutes to allow the filling to set. Serve warm or at room temperature with whipped cream and fresh fruit.

Nutritional Information

Calories: 422
Carbs: 64g
Fat: 17g
Protein: 6g

Nutritional Disclaimer

Cheerful Cook team members are not trained nutritionists or medical professionals. Calorie information and nutritional values are estimates. If you have nutritional concerns, we recommend using a nutritional calculator.

Maike Corbett is the founder and food blogger of Cheerful Cook, a popular recipe website featuring comfort food recipes from the US and Germany. She has been featured in numerous media outlets, including the AP Wire and MSN.

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