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Slow Cooker Peanut Butter Cup Swirl Cake Recipe

Slow Cooker Peanut Butter Cup Swirl Cake Recipe

Almost everyone likes dessert. If you are looking for a recipe that is sure to wow just about anyone who tries it, you should follow these steps carefully. You will find that while the recipe itself might not be difficult to follow, the layers of rich flavor in this delightful dessert will confuse the brain into thinking it took hours and hours to prepare. Really, you just let it cook itself and get to reap all of the credit and compliments for your masterful creation.

  • Cook Time: 1 hr. 45 minutes
  • Prep Time: 10 Minutes
  • Total Time: Around 2 hrs



  • One Box (15-25 oz.) of Yellow Cake Mix
  • 3 Large Eggs
  • 1 Cup of Water
  • 1/4 Cup of Softened Unsalted Butter
  • 1/2 Cup of Creamy Peanut Butter
  • 1/2 Cup Hot Fudge Sauce (Thick)

Toppings & Glaze:

  • 1/3 Cup of Creamy Peanut Butter
  • 1/3 Cup of Hot Fudge
  • 1/4 Cup of Cream (Milk Works as Well) [might require more for appropriate consistency]
  • 1 Cup of Confectioner's Sugar
  • 20 Mini Peanut Butter Cups, Unwrapped and Halved
Slow Cooker Peanut Butter Cup Swirl Cake Recipe


To Prepare The Cake:

Start by spraying the inside of a 6-quart slow cooker with traditional cooking spray. Do not get heavy handed with the spray, but ensure that the sides and bottom have a thin coating. Set this dish aside until you are ready to begin cooking.

Get a large mixing bowl. In this bowl, you will combine the cake mix, eggs, butter, peanut butter, and water. To make it easier on yourself, employ your electric mixer on a medium speed setting to thoroughly mix all of the ingredients together. 

This should take around 2 minutes to completely mix together. This will be a very thick batter, so be sure to stop every so often to scrape the sides of the mixture back down into the bowl. 

Take just over half of your mixture and pour it into the slow cooker you prepared in the first step. Add the hot fudge in evenly over the mixture that you have put into the slow cooker, and then pour the remaining batter in on top of that.

Take a knife or rubber spatula and swirl back and forth throughout the slow cooker to gently pull the layers around. But, before that please pick a knife grinder and sharp your knife with it to make the cooking process precise. Begin cooking this creation on high for around 1 hour and 45 minutes.

After 1 1/2 hrs., use a toothpick to test the consistency. When it is coming out clean, you can remove it from the heat and set the cake aside (still in the slow cooker dish) to cool. While this cools, you will begin your glaze and toppings.

Glaze and Toppings:

Now, you've got your cake cooling away from the heat source and you are ready to start preparing the toppings and the glaze to put the finishing touches on the dessert. Bring out a medium bowl and add your confectioner's sugar. Add in both the milk (or cream if you so chose) and the peanut butter.

This entire concoction will be whisked until it is an even consistency throughout. Depending on your desired consistency of the glaze, you might choose to add in small amounts of your milk/cream to thin out your mixture. At this stage, it is really all about what looks best to you and what you are able to work with.

Once you have the glaze at the appropriate consistency for your liking, you can begin to pour it evenly over the cooling cake in your slow cooker dish. Be sure to spread it out evenly as you pour, as this is not always an easy glaze to spread around with a spatula.

Take the hot fudge and drizzle it evenly over the now glazed cake. You can take your rubber spatula and swirl the fudge around to spread it more evenly around the cake's top.

Finally, you are going to distribute all of the halved peanut butter cups evenly over the top of the cake for an added garnish of decadence. You will want to immediately serve this dish, as it is ideal fresh and warm from the slow cooker.

While it is ideal to eat this creation fresh and hot, you are able to store it within the slow cooker (with an airtight seal) for a few days in case it doesn't all get eaten by your family in the first sitting.

Final Verdict:

If you are looking for a lavish and decadent dessert that is going to be the talk of your family days (or even weeks) after they have polished it off, you can't go wrong with the Slow Cooker Peanut Butter Cup Swirl Cake. It has all of the things that make chocolate and peanut butter so good together, complete with a dense yellow cake that pulls all of it together and helps you to savor each rich bite.