Crazy for Crust

Slow Cooker Caramel Peanut Butter Hot Fudge Cake

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Say that title 5 times fast! I just couldn’t decide what to leave out. Peanut butter? Caramel? Hot fudge? Slow Cooker? Crock Pot?

Whatever, this Slow Cooker Caramel Peanut Butter Hot Fudge Cake has the longest title in history, but it’s one of my new favorite desserts!

Crockpot Caramel Peanut Butter Hot Fudge Cake is the perfect thing to make when you want a gooey hot dessert!

See that? That oozy caramel? It’s a Rolo.

{I know, right? I put a Rolo inside a peanut butter cake? I’m a genius.}

Now that we’re really into fall, I love using my slow cooker for dinner. (Well, at least I will be, once it stops being freaking 90 degrees. here. I mean come on Mother Nature. Give us a break please!)

I love making soups and roasts and chicken in my crockpot, but my new favorite thing to make is dessert. Obviously!

A few weeks ago I made a Slow Cooker Apple Dump Cake that rocked my world. And once I made that I started getting so many other ideas. Chocolate cake, chocolate lava cake, pie…and so many more. This is my first installment in my #crockpotallthethings winter dessert series: a Caramel Peanut Butter Hot Fudge Cake.

#notreallyaseries #butmaybe #lotsofideas

This Crockpot Caramel Peanut Butter Hot Fudge Cake is warm and gooey and awesome with ice cream!

This recipe could not be easier. I actually whipped it up one morning before school and when I got home from the gym my morning snack was ready. {Kidding. Um, sort of?}

You make this with a bowl and a spoon, no mixer needed. The peanut butter batter comes together fast with some easy stirring and it gets spread in the bottom of your slow cooker. Then you press some Rolos in the top, because Rolos are good.

Then comes the hot fudge part: cocoa and sugar are mixed with boiling water and poured slowly over the cake. While it cooks the chocolate sauce becomes thick, like hot fudge.

My cake took just about 2 hours to cook on high power. Remember though – all slow cookers are different. Mine has settings for low power (12 or 10 hours) and high power (4 or 6 hours). I put mine on high for 6 hours and after 2 it was done. If you’ve never made a cake in the crockpot before, be sure and start checking it after about an hour. It might be done in an hour and a half, or it could take up to 3 hours.

Once it’s done you let it cool a little bit, then scoop big bowls with ice cream. Because you can’t have hot fudge cake without ice cream!

Seriously, where has crockpot cake been all my life??

Crockpot Caramel Peanut Butter Hot Fudge Cake

What do you love to make in your slow cooker?

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Servings: 8 servings

Slow Cooker Caramel Peanut Butter Hot Fudge Cake

Prep Time:
20 mins
Cook Time:
2 hrs
This peanut butter hot fudge cake is filled with Rolos and is baked in the slow cooker! There's nothing better than a bowl of this topped with ice cream for a warm and gooey dessert.


  • 1 cup all purpose flour
  • 1 cup granulated sugar — divided
  • 1 teaspoon baking powder
  • 1 cup milk
  • 1/3 cup vegetable oil
  • 1/2 teaspoon vanilla
  • 3/4 cup peanut butter
  • 15-20 Rolos or similar caramel candy — unwrapped
  • 3 tablespoons unsweetened cocoa powder
  • 1 cup boiling water


  1. Stir the flour, 1/2 cup sugar, and baking powder in a large bowl. Add milk, oil, and vanilla and stir until smooth. Stir in the peanut butter.
  2. Spray a 6 or 7-quart slow cooker with cooking spray. Spread the batter in the bottom of the crockpot. Press Rolos evenly across the top of the batter.
  3. Whisk 1/2 cup remaining sugar and cocoa powder in a medium bowl. Slowly whisk in the boiling water. Carefully and slowly pour the chocolate water over the top of the cake. Do not stir.
  4. Cover and cook on High for about 2 hours, or until a toothpick comes out clean. Cool slightly before serving. Serve with ice cream or whipped cream.
  5. Note: all slow cookers cook differently. My crockpot has a “High 6 hour” setting, which is what I used. Be sure to check on your cake after 1 1/2 hours and it may take up to 3 hours, depending on how your machine cooks.

Click here to see more PEANUT BUTTER recipes!

Crockpot Apple Dump Cake

Crockpot Apple Dump Cake (1 of 6)w

Caramel Stuffed Peanut Butter Cookie Bars

Caramel Peanut Butter Cookie Bars (6 of 6)w

Peanut Butter Coffee Cake

peanut-butter-coffee-cake (4 of 5)w

Sweets from friends:
Slow Cooker Pumpkin Pie Cake
by Mom on Timeout
Low Carb Slow Cooker Chocolate Cake by All Day I Dream About Food
Chili’s Molten Lava Cake by Something Swanky

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  1. Wow. Long title or not, this cake is amazing. I love the oozing Rolos! And by the way, I was up late last night reading your post on photography in detail. It was super helpful!

  2. OMG! Love this idea! Especially that I can just go with a spoon right at it! Pinned!

  3. I’ve been wanting to make a cake in my slow cooker for ages now but never have….and you’ve done 2 in 2 months. I need to get on this! I am loving this one for the chocolate, ooey-gooey factor! 🙂 pinned!

  4. Mmm, looooove a slow cooker cake! This look gooey and delicious!

  5. I’d be too busy shoving that into my face to say it 5x fast. Omg.

  6. I don’t mind the long name if all of that goodness is in the cake. I haven’t tried cake in a slow cooker before but I will be soon after these photos.  Gooeyness topped with ice cream. Yum, yunm!

  7. I love everything about this cake! Also, can we talk about these photos for a sec? They are AWESOME!
    Pinned, duh 🙂

  8. If I had a slow cooker, this would be my new best obsession–I’m totally oven-lazy these days, and this cake looks GORGEOUS. Great share, Dorothy–and obviously, it deserves to be shared everywhere! Pinning and tweeting!

  9. Haha, love your after gym snack.. you win my heart! This looks absolutely delightful.  YUM!

  10. Wow, best slow cooker cake EVER, Dorothy! I am always amazed at your creativity. This sounds so amazing! Pinned!

  11. Oh my, I could curl up with this!

  12. OMG I need this right now! Looks so divine!

  13. You ARE a genius!  It looks scrumptious, and thank you for a slow cooker recipe.

  14. Where is that big thumbs up you can send in Facebook messages when you need it?? Awesome. 🙂 

  15. Oh goodnesssssss. I am dying over here. Only wish I would have seen this earlier today so I could be eating this right meow! 

  16. Wow; you’ve done it again! I want it now!!! 🙂

  17. Oh good gracious, you’re speaking my language! I love gooey cakes and peanut butter, no less? Daaannng!

  18. I want to dive into this cake head first. It looks so gooey and delicious. Can’t wait to try it in my new Ninja slow cooker. Yum-o!

  19. i just gained 30 pounds thank you very much! WOW that looks SO indulgent!

  20. DANG that looks good!  This is why I come here day after day:  To drool my heart out!!  🙂

  21. Peanut butter, caramel candy.. sounds fantastic!

  22. Dorothy, this cake is a masterpiece of oozy, peanut buttery goodness!!! I don’t make anything in my slow cooker because it hates me but I think even it couldn’t ruin a delicious cake like this! Pinned!!! 

  23. This is seriously so drool worthy! You are an evil genius, and I love you for it!!

  24. I love cooking with my slow cooker but have never made anything sweet in it before.. so this recipe is a great excuse for me to pull out my slow cooker! Thanks for the inspiration Dorothy!

  25. Help! I went home last night and made this cake because I had to have it now! Peanut butter hates me, so I thought I’d try Biscoff spread (the cookie spread). I was debating on cashew butter but wasn’t sure if it would go well with chocolate. The cake itself had very little flavor. Would the peanut butter (or other nut butter) have given off a stronger flavor? I also used milky ways (since I had them already). They melted into the cake making a chocolately gooey goodness. 🙂
    Also, the hot fudge seemed to end up in the bottom of the crock pot around the edges. Is that normal?

    • I’m not sure how the other spreads would affect the flavor of the cake, but I know mine was pretty peanut buttery. (In my first test of the recipe, there was much less peanut butter so I really upped it to 3/4 cup.) I did notice the hot fudge around the edges, but mine had some throughout as well. And milky ways – great choice!! They must melt more than Rolos, those stayed pretty “together”.

      • My husband liked it, so maybe it’s just me. LOL It was only the cake part (with no chocolate) that I thought should have had more flavor. I really think it was the cookie butter that got lost in the cake. Maybe cookie butter is meant to be eaten out of the jar with a spoon only! 😀

      • Sometimes I think that cookie butter is better on a spoon than in treats! I think it can get lost sometimes, depending on the recipe.

  26. A cake it probably one of the only things that i have not made in my slow cooker, but I’m willing to try with this recipe. I love making bbq chicken in my slow cooker. The flavors really come out that way and the chicken is so tender. 

  27. This looks utterly amazing and I think I’ll have to make this very soon!!

  28. I am embarrassed to admit that I actually squealed like a little girl when I saw this recipe. This is EXACTLY right up my alley. I will be trying this ASAP!!!! Pinned 🙂

  29. Everything about this sounds great except one thing. I’m alergic to peanuts. Is there anything that I could substitute for the peanut butter?

    • I haven’t tried it but I’m sure you could substitute any nut butter (if you’re not allergic to almonds, cashews, etc.) or sun butter which is good for those with allergies. Nutella or Biscoff would be awesome too, but you would want to reduce the sugar, as those spreads are more sugary than PB!

  30. I have always wanted to try making a dessert in my slow cooker and now I totally know which will be the first I make.  I am dying over how ooey gooey amazing this looks, you totally are a genius for putting a rolo inside a peanut butter cake. That sounds out of this world! Pinning:)

  31. Whoa! Every component of this cake is amazing! I really want a bowl full so I can stuff my face right now 🙂

  32. yesss you ARE a genius!!! Chocolate, pb, AND caramel–all cooked in a slow cooker? Gooey heavenly deliciousness! I bet it smells so amazing!

  33. Just saw the recipe and made an impulse half batch.   It’s so rare that I have Rolo’s on hand, so it was definitely a sign.   First time making a crock pot cake, but it won’t be my last.    Mahalo!

  34. This is beyond amazing!! I had been planning a slow cooker week for ages (umm, since the end of August?), so I totally laughed aloud when you wrote about having a series. We should totally trade slow cooker desserts sometime! 

  35. This is in my crockpot as I type!! Can’t wait to try it!!

  36. Has anyone tried to make a gluten free version of this? I’m allergic to gluten and I’m wondering if it would still turn out well if I just used gluten free all purpose flour. Any thoughts?

  37. can I use something else besides rolos in the crockpot for the caramel peanut butter hot fudge recipe?

  38. I think my crockpot is around 3 qts, would it work if I halved the recipe?

  39. Hi, I’m just wondering, 15-20 rolos as in rolo packages? or 15-20 individual little candies?

  40. Am I really reading that you put the Rolos in “UNWRAPPED”?  I don’t understand that at all.

  41. Made this last night, my first slow cooker cake! I’m not a big cake person but the ooziness of this recipe was enough for me : ) The cooking time is right on, I used my small crockpot which cooks pretty hot and it was ready within two hours. I added a little Nutella to the chocolate as well, I can think of tons of variations that would be delicious! Thanks.

  42. Seriously delicious. I made this for our day-after-Thanksgiving dessert party, because it didn’t require the oven and it seemed like a worthwhile gamble. My twenty-year-old daughter took two bites and said, “Always make this, for everything, forever, from now on.” Terrific recipe and couldn’t be easier. Thanks for posting it!

  43. I am very excited to try this! I have never baked in a crock pot before. To ensure the cake is not under or over baked, what is the test? Dry toothpick method? Or….?
    With the fudgy sauce on it, will I be able to tell when it’s done?
    Thank you so much for your guidance, AND for sharing your awesome recipes! I’m so glad to hav found you! : )

    • If I remember correctly with this cake, the sauce floats to the bottom, so you can somewhat see when it’s done. The center shouldn’t be jiggly, and you can try the toothpick test. Just make sure to watch the edges – often those get done first in the crockpot, especially if one side cooks faster.

  44. I had a dinner party the other week, kitchen was too busy with food to bake desert so I whipped this up in the crock pot and couldn’t believe how it turned out! I already loved my crockpot but now even more knowing that amazing deserts can be made with it =) Great recipe!

  45. I am bringing this to a crock pot party. Should I cook ahead and just warm it there? Sounds delicious!

    • It depends how long before you want it served. If the party is long and you don’t want it served until the end, then that’s fine. You can also make it at home and then just warm it up on a low setting there!

  46. Looks amazing!! I am serving a really large group. Have you or anyone else ever tried to double it?

  47. Wow these look amazing! I can’t wait to try them. I’m gluten sensitive so I’ll be trying to make it gluten free. Hope it will still turn out!

  48. Can this be done on the oven? If so, what temp and for how long?

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