Reese’s Peanut Butter Cup Chocolate Cake {Crockpot}
75 Comments Jun 30, 2022
Updated Jul 17, 2024
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Make a decadent Slow Cooker Reese’s Peanut Butter Cake for your family. It has warm chocolate cake and melty peanut butter frosting and is topped with Reese’s peanut butter cups.
If you love warm dessert cuisine, skip using the cake pan and the oven for your crockpot. It is the perfect way to go. We also make Slow Cooker Blackberry Cobbler and Slow Cooker Lave Cake.
Table of Contents
Can I make cake in a crockpot?
- You can make cake in the crockpot! It’s a perfect environment to create a warm cake you spoon out instead of slicing. Be sure to watch the timing for a crockpot cake can burn easily.
- This moist chocolate cake cooked in the slow cooker is perfect for family get-togethers, BBQs, birthday parties, or even a church potluck.
Ingredients
- Devil’s food cake mix – You can use any chocolate cake mix you like. We also use chocolate cake in our slow cooker s’mores cake recipe.
- Wet ingredients for cake – Eggs, melted butter (I use melted butter instead of oil), and water
- Warm glaze – Melted peanut butter and powdered sugar make the best topping for this chocolate cake.
- Reese’s Peanut Butter Cups – Mini peanut butter cups go inside the batter and halved bite-size Reese’s go on top for garnish.
- (The full recipe is in the recipe card below the images).
Step-by-Step Directions
Step One – Mix a deviled food cake mix, eggs, melted butter, and water in a large bowl. Stir in a small bag of mini Reese peanut butter cups.
Step Two – Spray an oval slow cooker with non-stick spray and pour the batter into it.
Step Three – Cook on HIGH for 2 hours without opening the lid during the cooking time.
Step Four – Add the peanut butter to a small pan set over medium heat on the stove top.
Step Five – Stir until melted and smooth and then add the powdered sugar, whisking until smooth.
Step Six – Pour the sweetened creamy peanut butter frosting over the warm cake.
Step Seven – Top with halved bite-sized peanut butter cups. Serve and enjoy!
How to serve warm cake
- Scoop the warm cake into serving bowls.
- Top with ice cream or whip cream. (Try this Reeses Peanut Butter Cup Ice Cream recipe) You can also provide chopped peanut butter cups, chocolate chips (semi-sweet chocolate chips are great), and/or diced fruit for an extra topping choice.
- Have a bottle of chocolate syrup ready for garnish if desired.
- This is a great dessert to let your guests serve themselves; they can choose how much dessert and toppings they prefer.
Variations
- Coffee – Use freshly brewed coffee in place of the water; it will have a slight hint of coffee and add depth of flavor to the cake.
- White Cake Mix – Not a huge chocolate fan? Use a white cake mix instead of chocolate, and you will have wonderful vanilla and peanut butter dessert.
- Reese’s Pieces – Use Reese’s pieces instead of cups for a fun twist! Or you can add a handful of both for some added texture.
Recipe FAQs
Yes! You can make Reese’s Peanut Butter Cake in the oven. Bake in a 9×13 pan, and bake as directed on the cake recipe mix box. It will still taste delicious!
The topping in this recipe tastes like the peanut butter topping at Baskin Robbins. It’s not overly sweet and goes great with chocolate and ice cream.
If desired, you can let the cake cool on the counter and place the entire slow cooker insert in the fridge. Flip the lid over to make it fit better in the refrigerator. Or spoon into airtight containers (this can be messy).
Freeze the leftover peanut butter cake in an airtight container for up three months. Thaw, warm, and enjoy!
Warm single servings in the microwave for about 30 seconds.
Reese’s Peanut Butter Cup Chocolate Cake {Crockpot}
Equipment
Ingredients
- 15.25 oz. devil’s food cake mix
- 1 cup water
- 1/2 cup salted butter, melted
- 3 large eggs
- 8 oz. pkg. mini Reese’s peanut butter cups
For the topping
- 1 cup creamy peanut butter
- 3 Tbsp. powdered sugar
- 10 bite size Reese’s peanut butter cups
Slow Cooker Size:
- 6 quart oval
Instructions
- In a large bowl mix together the cake mix, water, butter, and eggs until smooth. Some lumps are ok, that is normal. Stir in the mini peanut butter cups.
- Spray the slow cooker with non stick spray. Add the batter to the slow cooker and spread out into an even layer.
- Cover and cook on HIGH for 2 hours without opening the lid during the cooking time.
- When the cooking time is done, remove the cake from the heat, to keep it from continuing to cook.
- In a small pan set over medium heat on the stove top, add the peanut butter. Stir until melted and smooth, watch closely because it will burn quickly. Add the powdered sugar and whisk until smooth.
- Pour the sweetened peanut butter over the warm cake. Top with halved Reese's peanut butter cups.
- Serve and enjoy! Great with ice cream or whipped cream.
How to Video
Sarah’s Notes
- You can make Reese’s Peanut Butter Cake in the oven. Bake in a 9×13 pan, and bake as directed on the cake mix box.
- To store, let the cake cool on the counter and place the entire slow cooker insert in the fridge if desired. Flip the lid over to make it fit better in the fridge. Or spoon into airtight containers (this can be messy).
- Reheat by heating single servings in the microwave for about 30 seconds.
- Coffee – Use freshly brewed coffee in place of the water, it will have a slight hint of coffee and add depth of flavor to the cake.
- White Cake Mix – Not a huge chocolate fan? Use a White cake mix instead of chocolate and you will have a wonderful vanilla and peanut butter dessert.
- Reese’s Pieces – Use Reese’s pieces instead of cups for a fun twist! Or you can add a handful of both for some added texture.
Nutrition
Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.
Hello. Can I use a chocolate cake mix instead of devils cake? I havent been able to find a devils cake mix
.
Yes! that will work just as well.
Can you still make this as a poke cake? When making a poke cake do you wait for cake and the Pb frosting to cool before pouring it over? I’m actually baking the cake in the oven for my son’s bday. Curious as whether to poke or not.
did you end up making this as a poke cake? I wanted to do the same but was unsure of whether to follow the directions on the box, or the directions here. Did the filling and the cake have to cool first?
I’m wondering about doing a poke cake too. Any tips??
How would you convert the baking time for a round crock pot? Any suggestions?
Hi Debbie! Just follow the 9×13 instructions on the box. It will work great.
I actually figured it out on my own. Instead of cooking on high for 2 hours I cooked on low for 2 1/2 hours. It came out perfect!!
As I always tell my students, “Make sure and read the directions before starting.” Lol! I used my 4.5 quart slow cooker, and it burnt on sides and raw in the middle. Completely my fault. Recipe says 6 quart cooker. I’m going to try again when I get a bigger slow cooker.
I had a 4 quart and had a similar thing not completely burned but overdone. I ground out the cake with a fork and mixed it all together. It looked like a batter half baked. I baked it in a 13×9 pan on 350 for 15 minutes, made the icing and it turned out fine!
Amazing. Would not have thought it to be so. You have to try it.
I must say this recipe intrigued me and my husband and I are not cake fans, but love peanut butter and chocolate. Decided to make this for Valentine’s Day. It was a better hit with us the day after and day after and day after! Seriously, yummy!! Thanks for the recipe. Will make again!
I checked cake after 1.5 hrs and it was already over done. All peanut butter cups sank to bottom and melted to the bottom. Corners were burnt. Cake very dry. Whole family was disappointed.
Your slow cooker must cook very hot! I’m sorry this happened.
If I’m in a hurry and need to make this in the oven ~
-what size dish?
-what temperature?
-how long?
Thank you so much!!
Same as the box says is what I would do 🙂
Mine isn’t done in the middle.
Used reeses pieces for topping. Kids loved it