Crockpot Reese’s Cake
76 Comments Mar 24, 2025
Updated May 22, 2025
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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’re a fan of chocolate and peanut butter, this Crockpot Reese’s Cake is a must-try. It’s rich, gooey, and packed with mini Reese’s right in the batter—plus a warm, sweet peanut butter topping that takes it over the top. You don’t even need an oven, which makes it super easy for parties or last-minute dessert cravings.
What you need
Here is all you need to make this decadent dessert. The full recipe is in the recipe card below the images.
Making a crockpot cake couldn’t be easier! Here is what you need below. Find the full recipe in the recipe card below the images.
- 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.
How to make Reese’s Cake in the Crockpot
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. Top with halved bite-sized peanut butter cups. Serve and enjoy!
Variations
My approved variations for this easy cake!
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.
My Serving Suggestions
Here is how I serve this chocolate peanut butter cake:
- Scoop the warm cake into serving bowls.
- Top with ice cream or whipped cream. (Try this Reese’s Peanut Butter Cup Ice Cream recipe) You can also provide chopped peanut butter cups, reese’s pieces, mini chocolate chips, and/or diced strawberries 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.
Crockpot Reese’s Cake
How to Video
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.
Sarah’s Notes
Nutrition
Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.
More Slow Cooker Dessert Recipes:
- Satisfy your chocolate cravings with indulgent crockpot desserts like Slow Cooker Better Than Sex Cake, made with layers of chocolate cake, caramel, and whipped topping.
- Try rich and creamy Slow Cooker Fudge or warm, chewy Crockpot Brownies that cook up perfectly.
- For something extra decadent, Crockpot Chocolate Lava Cake oozes with melty chocolate in every bite.
- If you’re craving something fruity, the Slow Cooker Blackberry Cobbler delivers a sweet-tart flavor with a golden, cakey topping that’s hard to resist.
I just made this today. As soon as I put in the last peanut butter cup on top of the peanut butter frosting, my husband stuck his spoon in to get a scoop of cake. He said he couldn’t wait, it smelled so good. He loved it! I thought it was good too but the cake needs to cool down before eating. Also, I suggest less peanut butter for the frosting. It was a bit thick but still yummy.
Haven’t made yet but had a question. Can you make the peanut butter early and reheat when needed? Would like to take somewhere then reheat up the peanut butter topping & serve once I’m there. Thank you
Burned in the crockpot. Disappointed bc it looked yummy but was a waste. Just make the cake in the oven and do a peanut butter frosting.