Loved by everyone who makes it, this peanut butter cake has been made in dozens of homes, and is always a huge hit. It’s the easiest peanut butter cake recipe you’ll ever make, because it starts with a store bought cake mix!
This Easy Peanut Butter Cake is Delicious!
This peanut butter cake is as easy as it gets. It’s simple, but decadent, and gives you a moist, and flavorful cake that is fail-proof! If you have an extra cake mix you should make this Cake Mix Banana Bread too, so good!
Why You’ll Love this Peanut Butter Cake Recipe
- Quick and Easy – A doctored up cake mix makes this pb cake as easy as it gets
- Peanut Butter Flavor – bursting with peanut butter flavor in every bite
- Great Texture – This cake is soft, moist, and extra fluffy
Easy Peanut Butter Chocolate Cake Ingredients
- yellow boxed cake mix (just the mix) – you can also sub a white cake mix, and how good would a chocolate cake mix be?
- milk – you can also use water
- vegetable oil – canola oil works great too
- creamy peanut butter
- eggs
How to make a Peanut Butter Cake with Cake Mix
- This cake starts with a dry boxed cake mix, then add in oil, milk, and eggs, and of course peanut butter. Mix them all together in a large bowl.
- Then pour the batter into a greased baking pan.
- Bake the cake until a toothpick comes out clean.
- Let the cake cool completely then spread your choice of frosting over the top.
- Then sprinkle chopped peanut butter cups on top if desired.
How to serve this deliciously Easy Peanut Butter Cake
This cake is amazing on it’s own. But I like to top it with a chocolate frosting, for a delicious chocolate peanut butter vibe. I like to use my homemade chocolate butter cream recipe most of the time, but honestly a can of chocolate frosting from the store is so delicious with it too. Then sprinkle it all over with some chopped up peanut butter cups, for extra deliciousness.
You can also top the cake with a peanut butter, or peanut butter cream cheese frosting. Peanut butter cake with peanut butter frosting makes the ultimate peanut butter lovers cake! Throw on some chopped up Nutter Butter Cookies on top, for even more peanut butter, and a little crunch, and extra yum!
This peanut butter cake is the ultimate treat for peanut butter lovers! It’s perfect for an easy birthday cake, or just when you need a treat. Anyone you share it with will be so impressed with your amazing cake, and will never guess that it started from a box ;).
More Peanut Butter Recipes:
- Chocolate Peanut Butter Bundt Cake
- Flourless Peanut Butter Cookies
- Microwave Peanut Butter Fudge
- Frozen Peanut Butter Pie
- Peanut Butter Chocolate Chip Cookies
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Peanut Butter Cake Recipe (Easy!)
Ingredients
- 15.25 oz boxed yellow cake mix (can substitute a white cake mix)
- 1 1/4 cup milk
- 1/3 cup vegetable oil
- 1/2 cup creamy peanut butter
- 3 large eggs
- 2 cups frosting (chocolate or peanut butter are great)
- 1 cup chopped peanut butter cups
Equipment
- Large Mixing Bowl
Instructions
- Preheat the oven to 350 degrees Fahrenheit. Grease a 9×13 pan with nonstick spray.
- Add all the ingredients to a large bowl and stir them together until combined. Continue mixing the mixture for 1-2 minutes.
- Pour the mixture into the prepared cake pan and smooth the top evenly.
- Place the cake in the preheated oven and bake for 25-30 minutes, or until a toothpick inserted in the middle comes out clean, or with a few moist crumbs.
- Remove the cake from the oven and let it cool completely.
- Frost the cake with your choice of frosting. Sprinkle chopped peanut butter cups over the top of the frosting if desired.
Ana says
Hi, can you add chocolate chips to this recipe? 1/2 cup?
Jules says
Fantastic! I made as 24 cupcakes and didn’t need to cook as long as the box said. They were delicious. I decorated with caramel and chocolate drizzle, crushed nuts, and a Reese’s cup on top.
Cheryl says
Has anyone used two 8” pans and if so how long did you bake?
Jean says
I made the cake today and it came out delicious. Thanks for sharing this recipe. Yummy
Aimee says
I’m so glad you enjoyed it 🙂
Mary Ann Campbell says
Can this be made into bundtlet cakes? Sounds yummy!
Aimee says
I think it should work but I haven’t baked bundlets, so I’m not sure how long they’d bake.
Ashley says
Do these turn out well if made into cupcakes? And what is the best way to store (room temp and/or fridge)?
This sounds so good. My mom used to make me my favorite yellow cake with peanut butter so want to try this recipe.
Aimee says
I haven’t tried them as cupcakes, but they should work great! I usually store them at room temperature 🙂
Addee Bailey says
Can you substitute Italian sweet cream creamer for the milk?
Aimee says
A creamer should work great 🙂
Linda Letchworth says
Made the cake as directed. Then add a cup of peanut butter to a can of milk chocolate frosting. My grandson loved it .
Aimee says
That addition to the frosting sounds so good! Glad he loved it!
Emanul Johnson says
Is the water and oil the same ratio for white cake mix
Aimee says
Yes it should work the exact same
Patty Wright says
I, Am Going To Make This For, My Adult Son For His Birthday. I, Am Going To Frost The Cake, With Peanutbutter Frosting Also. Wish, Me Luck That, It Will Turn Out! It, Is A Surprise For Him On Sept. 7th. 2023. Thank You, Very Much!
Aimee says
Hope he loved it!
irene says
I tried it today as a Bundt Cake. It worked finbaked for 37 minutes. very good !!!
irene says
can this be made as a bundt cake ?
Aimee says
Yes it should work, it may need to bake longer since the bundt pan is thicker than the 9×13 pan. I’d start with 30-35 mins and go from there.
Sandy Gotter says
I didn’t see anything g about adding sour cream to this cake . Do we add it ? Thanks Sandy
Aimee says
I accidentally had it written in the post before (hence the earlier comment), but no I don’t add it to this recipe.
Cris says
Thank you for this recipe. I am about to try it but under what is needed, you have Sour Cream listed with ??? after it but I did not find any information in the instructions on what you could add or substitute the Sour Cream for. Could you please explain?
Thank you
Aimee says
So sorry, I meant to take that out. You can add 1/2 cup to the mix if you want.