Oatmeal Pie Cupcakes made with an oatmeal and flour blend and flavored with cinnamon. Frosting these cupcakes is a homemade buttercream and topped with an oatmeal pie wedge.
Making Oat Flour
This recipe for oatmeal pie cupcakes has a mixture of all-purpose flour and ground old-fashioned oats.
The easiest way to make oat flour is by using a food processor. It blends easily and gets the desired powdered results.
Adding the other dry ingredients to the powdered oats makes for super easy blending of the dry ingredients. Add the other dry ingredients to the processor and use quick pulses to blend the ingredients together.
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Making the Cupcakes
To get light and fluffy cupcakes, it's important to blend the ingredients following the directions.
The buttermilk is added alternately with the dry mixture so that it doesn't get overbeaten.
If you do not have buttermilk, this can easily be substituted for regular milk with 1 teaspoon of lemon juice. Allow the milk to sit for 5 minutes before adding it to the other ingredients.
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Oatmeal Pie Cupcakes Buttercream Frosting
Buttercream frosting is incredibly easy to make and it makes piping cupcakes easy. For success when making buttercream frosting, it's important to use softened butter, not chilled, and not melted.
After combining the butter, powdered sugar, and vanilla extract, it is then time to add the milk. Add the milk at 1 tablespoon at a time. Once you reach a smooth but still pipable texture it is ready to use on the cupcakes.
To pipe cupcakes, the recommended supplies are:
- Piping Bag (I prefer reusable)
- Hand Mixer
- Piping Tip
To top these oatmeal pie cupcakes, slice each oatmeal creme pies into 4 equal pieces. Gently place the quartered oatmeal creme pie into the center of the frosting.
Ingredients in Oatmeal Pie Cupcakes
- All purpose flour - spooned & leveled
- Old Fashioned Oats
- Baking Soda
- Baking Powder
- Salt
- Ground cinnamon
- Unsalted butter
- Brown Sugar
- Eggs
- Vanilla extract
- Buttermilk
- Sour Cream
TIP: You can substitute the buttermilk with ⅓ cup of milk + 1 teaspoon of lemon juice. Allow the mixture to sit for 5 minutes before adding it to the ingredients.
📖 Recipe
Oatmeal Pie Cupcakes
Equipment
Ingredients
- 1 cup all-purpose flour - spooned & leveled
- 2 tablespoon cornstarch
- ½ cups old fashioned oats - ground
- ½ teaspoon baking soda
- ¾ teaspoon baking powder
- ¼ teaspoon salt
- 1 ½ teaspoon ground cinnamon
- ½ cup unsalted butter - softened
- ¾ cup brown sugar - packed
- ¼ cup granulated sugar
- 2 eggs
- 2 teaspoon vanilla extract
- ⅓ cup buttermilk*
- ⅓ cup sour cream
Buttercream Frosting
- ¾ cup unsalted butter - softened (1 ½ sticks)
- 4 cups confectioner's sugar
- 1 teaspoon vanilla extract
- 1-2 tablespoon milk
- 4 oatmeal creme pies - quartered
Instructions
- Preheat the oven to 350°F
- Line a muffin pan with cupcake liners.
- Add the old fashioned oats to a food processor and grind them to a powder.
- Add the spooned and leveled all-purpose flour, cornstarch, baking powder, baking soda, and salt.
- Using quick pulses combine the dry ingredients together, set aside.
- In a large bowl, beat the softened butter together with the brown sugar and granulated sugar.
- Beat in the eggs one at a time.
- Beat in the vanilla extract and the sour cream.
- Add half of the dry mixture to the wet ingredients and beat until blended.
- Beat in half of the buttermilk*.
- Add the remaining dry ingredients and the remaining buttermilk*.
- Scoop into the cupcake liners and fill ¾ full.
- Bake in the preheated oven for about 16 minutes. Check with a toothpick for doneness.
How to Make Buttercream Frosting- Beat the softened butter until the butter is creamy.
- Beat in the vanilla extract.
- Slowly mix in the powdered sugar until well blended. It will be very thick.
- Add the milk a little at a time until the desired consistency is reached.
Notes
Nutrition
Nutritional information is an estimate based on third-party calculations. Actual values may vary due to ingredients, measurements, and serving sizes.
© Mama Needs Cake
Tried this recipe?
Let us know how it was!
Dana is an experienced recipe creator who crafts easy and delicious recipes for all levels of home cooks.
Her recipes range from classic comfort foods to healthy and nutritious meals, and she is always on the lookout for new and exciting ways to bring flavor and variety to the table.
Christina says
It would have been nice to know that they would come out very soft and wet looking, even when a knife comes out clean. I way over-baked mine thinking they weren't done because they looked so wet. There are also no instructions on how to make the buttercream. I used about half as much powdered sugar because 4 cups felt like way too much to me.
Dana says
If the toothpick or knife comes out clean then they are done baking. 🙂 I will update the recipe to share the directions for the buttercream for those that are unsure on how to make it. Four cups of powdered sugar is pretty basic in buttercream recipes when making a buttercream that can be piped onto cupcakes for decoration.
Brian says
Not good. These were way too soft. The flavor was good. I didn’t overbake as the other comment stated. They just didn’t have enough body
Joni says
I tried an oatmeal cream pie cupcake at a bake sale last weekend, and instantly knew I had to find a recipe to make them for my hubby. I followed your recipe exactly (except I may have been generous with the cinnamon because we love it). They turned out perfectly! The texture is light just like the bake sale cupcake - not “too soft” at all in my opinion. Also, when the bake time was up the cupcakes did look shiny/wet, but the toothpick test showed me they were done. We shared with four friends who all loved them too. Thank you for a great recipe with clear instructions!
Dana says
I am so glad that you enjoyed these cupcakes! I absolutely love them 🙂