Peanut Butter Whoopie Pies

I grew up visiting the Pennsylvania Dutch Country as a child. Whoopie Pies are a classic dessert among the Pennsylvania Amish. They’ve become more popular in recent years and I’ve seen them pop up all over the place.
Last night I went out to dinner with a few of my girlfriends from college. I had some of these Peanut Butter Whoopie Pies waiting in the car in a lunch bag with ice packs. After dinner, we moseyed over to Starbucks for coffee and I whipped out my whoopie pies for dessert. A chorus of “Tar, these are really good!” ensued. I may have blushed a little.

What is a Whoopie Pie?
The official definition is “a dessert or snack made from two soft cookies, typically chocolate, with a creamy filling sandwiched in between.”
I skipped over the traditional chocolate version and went straight to peanut butter. And I don’t regret it one bit.
“Pennsylvania, Maine, Massachusetts, Virginia and New Hampshire all claim to be the birthplace of the whoopie pie.” – Wikipedia
Wherever they came from they are delicious. The first whoopie pie I clearly remember eating was in New Hampshire at a cute little country store while visiting my husband’s aunt. That was chocolate with marshmallow filling. Yum!

How to Make a Whoopie Pie?
Whoopie Pies are very easy to make. They are made from a thick, cakey batter that produces big soft cookies. My trick is using a cookie scoop to keep them a uniform size. This makes finding a pair that match much easier. Once you mix up the batter, just scoop the cookies and bake.
Next, mix up the filling. Cool the cookies, add some filling, and give them a top. Done!

Whoopie Pie Ingredients:
- butter
- sugar-free sweetener
- peanut butter powder
- coconut flour
- egg
- almond milk
- sour cream
- vanilla
- baking powder
- baking soda
- salt

Peanut Butter Buttercream Ingredients:
- butter
- cream cheese
- sugar-free sweetener
- peanut butter powder
- vanilla

Love Peanut Butter everything? Here are some more Low Carb Peanut Butter Desserts!
Keto No Bake Peanut Butter Cheesecake
Want a peanut butter fix even faster? Try this 3 Minute Keto Peanut Butter Mug Cake!
And my Chocolate Whoopie Pies are a must for any whoopie pie fan.

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Peanut Butter Whoopie Pies
Ingredients
Whoopie Pie Ingredients:
- 4 oz salted butter
- 1/2 cup Joy Filled Eats Sweetener
- 1 cup peanut flour
- 1/2 cup coconut flour
- 1 egg
- 1/2 cup almond milk
- 1/2 cup sour cream
- 1 tsp vanilla
- 1 tsp baking powder
- 1 tsp baking soda
- 3/4 tsp salt
Peanut Butter Buttercream Ingredients:
- 4 oz salted butter
- 1 oz cream cheese
- 3/4 cup powdered sweetener
- 1/4 cup peanut flour
- 1 tsp vanilla
Instructions
- Preheat oven to 350.
- Cream together the butter and sweetener with an electric mixer. Add in the rest of the ingredients and mix until smooth. Using a large cookie scoop drop 16 blobs of dough onto parchment lined baking sheets. Bake for 25-27 minutes until the whoopie pies feel firm to the touch and spring back when lightly pressed. Cool completely.
- While they are cooling you can make the filling. Cream together the butter, cream cheese, and sweetener. Mix in the peanut butter powder and vanilla until smooth.
- To fill the whoopie pies flip half of them upside down. Spoon or pipe the frosting evenly between them. Top with a second cookie. Store in the fridge.
Notes
Nutrition
I couldn’t resist sharing a pic of my little finger licker at the bottom of this post. 💖

Originally Published September 21, 2016. Revised and Republished March 15, 2019.








I used the chocolate Keto Whoopie pie recipe and used the Peanut Butter Filling from this recipe and OH WERE THEY GOOD!!….Thought I had better clarify my previous comment for you! I have also made both recipes with their original fillings and liked them both, but just HAD to use Chocolate Whoopie Pies with Peanut Butter filling.
The whoopie pies turned out great, and my favorite part of them was the peanut butter filling!! To die for!!! Thanks for sharing. I used “your sugar” because it is my all-time favorite sugar substitute. Thanks again for ANOTHER GREAT RECIPE!!
I want to try this recipe , I am a little confused about the the peanut butter flour in the recipe but in what you will need is peanut butter powder.
They are interchangeable.
Are they supposed to spread during cooking or am I supposed to flatten them? Mine stayed in n the shape of my cookie scoop!
Mine spread as seen in the pictures without flattening them. You can flatten them a bit if necessary.
Outstanding! One of my favorites of yours
Have any more Whoopie Pie recipes?
Not yet, but you can really bake most cake or cupcake recipes as a whoopie pie. Just reduce the liquid to make the batter thicker.
If I just used Stevia what would the amount needed be? Same as listed in recipe? Newbie here so just learning the ropes!
Which stevia do you have? A stevia extract powder (the super-concentrated ones that come with a teeny tiny spoon) will not work. But a blend like truvia could.
For the frosting can you use peanut butter protein powder instead of the flour ?
Possibly. I’d mix up a very small batch first. As long as you like how it tastes go for it!
Delicious. Not too sweet. Used your sweetener for the cookie and swerve confectioners for the filling. Next time maybe I would add a few crushed peanuts for some crunch.
Question: can I use Peanut Butter it self , instead of peanut butter flour?
I have not tested this with peanut butter so I’m not sure that would work. Most grocery stores do carry peanut butter powder or peanut butter flour. It goes by both names.
Question. Above where you list the ingredients you list Peanut butter powder, down below in the recipe peanut butter powder is not listed but peanut flour is, which one is it? PB2 or Peanut flour? Can’t wait to try these!!
They are similar and interchangeable. Different brands label differently. The brand PB2 does have added sugar so that isn’t the best choice. .
How much is one stick of butter. ?
1 stick is equal to 4 ounces or 113 grams
My frosting tasted kind of grainy was I supposed to use confectionery sugar?
Powdered sweeteners do work best in frosting.