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Slow Cooker Chocolate Peanut Butter Cake

Slow Cooker Chocolate Peanut Butter Cake consists of a moist chocolate cake flavored with peanut butter and topped with peanut butter frosting and lots of chopped peanut butter cups. So delicious!

Chocolate Peanut BUtter Cake in a black slow cooker.

 

This easy to make Slow Cooker Chocolate Peanut Butter Cake makes a wonderful picnic or potluck dessert. Since it cooks in the crock pot there’s no need to heat up the kitchen.

Desserts have become one of my favorite things to make in the slow cooker and they are especially convenient for the hot months of the year. We’ve already had some scorching hot days in South Carolina. It doesn’t do any good to turn the oven on when the air conditioner is already fighting against 90 degree heat outside.

But this isn’t just a cake for the summer months. We enjoy it all year long.

 

Chocolate and peanut butter is always a winning combination. Especially when there are lots of peanut butter cups involved.

Slow Cooker Chocolate Peanut Butter Cake  topped with chopped peanut butter cups.

The cake batter is made from a box of chocolate cake mix with peanut butter mixed in. The cake only takes about 1 hour and 45 minutes on HIGH in the crock pot.

Once the cake is done, it is covered with a peanut butter glaze and mini peanut butter cups, the kind that are individually wrapped. I cut them in half and use a large quantity of them, about 26.

 

 

Feel free to use as many peanut butter cups as you want. I don’t think there is such a thing as too many peanut butter cups.

Recipe Tip: 

Different slow cookers cook at different rates. Some run hot and cook much faster. Use the cooking time as an estimate.

Chocolate Peanut Butter Cake topped with peanut butter frosting and chopped peanut butter cups.

 

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Watch the short video below to see how to make Slow Cooker Chocolate Peanut Butter Cake.

Chocolate Peanut BUtter Cake in a black slow cooker.

Slow Cooker Chocolate Peanut Butter Cake

A chocolate and peanut butter flavored cake covered with peanut butter glaze and lots of chopped peanut butter cups.
PREP: 15 mins
COOK: 1 hr 45 mins
TOTAL: 2 hrs
SERVINGS: 12 servings

Ingredients

  • 1 box chocolate cake mix
  • 1 cup water
  • 3 eggs
  • 1/2 cup creamy peanut butter
  • 1/3 cup butter, softened

Peanut Butter Glaze

  • 1/4 cup creamy peanut butter
  • 1/4 cup milk
  • 1 cup powdered sugar

Toppings

Instructions

  • Spray a 6-quart oval slow cooker with cooking spray.
  • Using an electric mixer, beat cake mix, water, eggs, 1/2 cup peanut butter, and butter on low speed for 30 seconds and then on medium speed for 2 minutes.
  • Pour batter into slow cooker. Cover and cook on HIGH for 1 hour 45 minutes to 2 hours.
  • (If your crock pot runs hot, check after 1 hour and 30 minutes.)
  • Remove slow cooker insert and place on a wire rack to cool for 15 minutes.
  • Make glaze. Whisk together peanut butter, milk, and powdered sugar in a medium bowl. Spread on top of cake.
  • Sprinkle fudge sauce and peanut butter cups on top.

Notes

Leftovers can be stored in an airtight container at room temperature.

Nutrition

Calories: 450kcal
Author: Christin Mahrlig
Course: Dessert
Cuisine: American
Keyword: slow cooker dessert

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Originally published May 18, 2016.

Adapted from Betty Crocker.

More Slow Cooker Desserts

 

Slow Cooker Lemon Cake. This crock pot cake is moist and has lots of fresh lemon flavor.

Slow Cooker Lemon Cake

Disclosure: This post contains affiliate links.

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41 thoughts on “Slow Cooker Chocolate Peanut Butter Cake”

  1. I made this for Thanksgiving. I only have a 4 quart crockpot, so I made it as directed with a couple of exceptions.
    1. I made the batter as directed but only poured in about 80% of it.

    2. I cooked on low for about 4 hours, as someone else suggested.

    The cake came out very fluffy and a little crumbly, but absolutely soft. I didn’t have any burnt edges or gooeyness. I absolutely love this cake, as did my partner.

  2. Looks so good! Do I need to until the whole chocolate has melted, or just following the recipe time?

  3. Bobbie J Gatchell

    I too did not see a response for doubling
    The recipe. Has anyone tried this? If so what was the result? How long to cook it

  4. What was the response for doubling the recipe.? How much longer did you cook it? Did it cook evenl

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