Reese's Peanut Butter Cup Chocolate Cake {Crockpot}

Reese’s Peanut Butter Cup Chocolate Cake Crockpot

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 blackberry cobbler and lava cake in our crockpot!

chocolate cake with peanut butter frosting with reeses on top.

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

ingredients for reese's peanut butter cake on a table.
  • Devil’s food cake mix – You can use any chocolate cake mix you like.
  • 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.

Step-by-Step Directions

How to make batter for peanut butter chocolate cake.

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.

four images about how to make and add peanut butter frosting to cake.

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!

overhead shot of reese's peanut butter cake.

How to serve warm cake

  • Scoop the warm cake into serving bowls.
  • Top with ice cream or whip cream. 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.
scoop out of peanut butter chocolate cake.

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.
bowl of peanut butter chocolate cake.

Recipe FAQs

Can I make this in the oven?

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!

What does the peanut butter glaze taste like?

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.

How do I store leftovers?

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).

Can I freeze this Reese’s cake?

Freeze the leftover peanut butter cake in an airtight container for up three months. Thaw, warm, and enjoy!

How do I reheat this cake?

Warm single servings in the microwave for about 30 seconds.

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spoon in chocolate peanut butter cake.

Reese’s Peanut Butter Cup Chocolate Cake Crockpot

Warm Chocolate Cake topped with melted peanut butter and chocolate peanut butter candy.

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Course: Dessert

Cuisine: American

Prep Time: 15 minutes

Cook Time: 2 hours

Total Time: 2 hours 15 minutes

Servings: 10

Calories: 607kcal

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.

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How to Video:

Recipe Notes:

  1. 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.
  2. 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).
  3. Reheat by heating single servings in the microwave for about 30 seconds.

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 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 Information:

Calories: 607kcal | Carbohydrates: 57g | Protein: 13g | Fat: 39g | Saturated Fat: 13g | Cholesterol: 75mg | Sodium: 682mg | Potassium: 430mg | Fiber: 3g | Sugar: 37g | Vitamin A: 370IU | Calcium: 109mg | Iron: 3mg

Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.

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