Desserts
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
- Serves 12 servings
- Prep 15 minutes
- Cook 1 hour
- Total 2 hours

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.

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.
How To Make Slow Cooker Chocolate Cake with Peanut Butter
(More detailed instructions in recipe card below.)
- Spray a 6-quart slow cooker insert with cooking spray.
- Mix together the batter. Use an electric mixer to beat together cake mix, water, eggs, peanut butter and butter.

- Transfer batter to slow cooker. Pour butter into slow cooker. Use a rubber spatula to even it out.

- Cook. Cover and cook on HIGH for 1 hour 45 minutes to 2 hours. Check it early, it may be done in less time. Remove slow cooker insert and let it cool 15 minutes before adding glaze.
- Make glaze. Whisk together peanut butter, milk, and powdered sugar. Spread on top of cake.

- Add toppings. Drizzle with fudge sauce and sprinkle with chopped peanut butter cups.

Recipe Tips
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.
Different slow cookers cook at different rates. Some run hot and cook much faster. Use the cooking time as an estimate.
Storage
Cake can be stored at room temperature for 4 days.

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More Slow Cooker Desserts
- Slow Cooker Lemon Cake
- Crock Pot Pecan Pie
- Crock Pot Butterscotch Apple Crisp
- Slow Cooker Butterfinger Cake
- Slow Cooker Rice Pudding
- Slow Cooker Pumpkin Cake
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Adapted from Betty Crocker.

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Recipe
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.
- Serves 12 servings
- Prep 15 minutes
- Cook 1 hour
- Total 2 hours
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
- 1/4 cup fudge sauce
- 26 miniature peanut butter cups, (unwrapped and cut in half)
Instructions
- 1
Spray a 6-quart oval slow cooker with cooking spray.
- 2
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.
- 3
Pour batter into slow cooker. Cover and cook on HIGH for 1 hour 45 minutes to 2 hours.
- 4
(If your crock pot runs hot, check after 1 hour and 30 minutes.)
- 5
Remove slow cooker insert and place on a wire rack to cool for 15 minutes.
- 6
Make glaze. Whisk together peanut butter, milk, and powdered sugar in a medium bowl. Spread on top of cake.
- 7
Sprinkle fudge sauce and peanut butter cups on top.
Notes
Leftovers can be stored in an airtight container at room temperature.
Equipment
- 6-quart slow cooker
- Hand-held electric mixer
Nutrition
- Calories461 kcal
- Carbohydrates54 g
- Protein9 g
- Fat26 g
- Saturated Fat8 g
- Polyunsaturated Fat5 g
- Monounsaturated Fat10 g
- Trans Fat0.2 g
- Cholesterol56 mg
- Sodium516 mg
- Potassium310 mg
- Fiber2 g
- Sugar36 g
- Vitamin A235 IU
- Vitamin C0.1 mg
- Calcium94 mg
- Iron2 mg







