This post may contain paid links. If you make a purchase through links on our site, we may earn a commission.

If you love chocolate and peanut butter, then this Crock Pot Chocolate Peanut Butter Lava Cake is going to be your ultimate dessert! Oh. My. Yum.

Note: We use referral links for the products we love.

Aunt Lou here.

As usual, we are having our weekly pitch-in for our small group at our church. When we were planning the meal, I volunteered for dessert but had no idea what I was going to make. Flash foward a few days. I was talking to Michael about it trying to come up with something. Then out of the clear blue, this Crock Pot Chocolate Peanut Butter Lava Cake was born!

I really have no idea what made me think this up, but I remembered how much I loved this Crock Pot Chocolate Lava Cake and the thought of peanut butter added to it just made my mouth water.

But how to do it? Peanut butter? Some kind of peanut butter mixture? How would that effect the cake batter? So I did what I usually do when I have an idea I can’t quite put together. I called Cris. She said peanut butter chips, I said brilliant. And now you get to say yum! 😉

Crock Pot Chocolate Peanut Butter Lava Cake Recipe

Note: Scroll the bottom of this post for a printable version of this recipe.

Ingredients for Crock Pot Chocolate Peanut Butter Lava Cake

2 c all purpose flour
1 c sugar
12 T baking cocoa divided
4 t baking powder
1 t salt
1 c milk
4 T oil
2 t vanilla extract
2 10 oz bag peanut butter chips
1 1/2 c packed brown sugar
3 c hot water

How to Make Chocolate Peanut Butter Lava Cake in a Slow Cooker

Spray crock pot with cooking spray
Combine flour, sugar, 4 T cocoa, baking powder and salt
Add milk, oil and vanilla and stir
Gently stir in one bag of peanut butter chips
Place in your crock pot and spread evenly
Combine brown sugar and 8 T cocoa in separate bowl
Stir in hot water
Pour mixture evenly over batter (do NOT stir)
Pour your second bag of peanut butter chips evenly across the top
Cover and cook on high for 1½ – 2 hours, until cake passes toothpick test
Turn off crock pot and remove lid
Let cake stand for 30-40 minutes
Serve cake and spoon chocolate lava from bottom of crock pot over cake

Crock Pot Chocolate Peanut Butter Lava Cake Notes

If you look at the Crock Pot Chocolate Lava Cake, you will notice that the measurements are doubled here. I am feeding an army at our “small” group, so I knew that I needed to double it. If you are not feeding an army, you can cut this recipe in half and use a 3-quart crock pot.
I used my Casserole Crock Pot for this. I love the 9×13 pan for crock pot cakes and casseroles. It just works perfectly. If you don’t’ have one, I would use a 6-quart slow cooker for this recipe.
I used Reese’s Peanut Butter Chips in mine. I don’t usually use name brand ingredients, but they were on sale and cheap. They worked great! You can try it out with your favorite peanut butter chips if you don’t have/want to buy Reese’s Peanut Butter Chips.
As with any of our recipes, calorie counts and nutritional information varies greatly depending on which products you choose to use when cooking this dish.
All slow cookers cook differently, so cooking times are always a basic guideline and should always be tested first in your own slow cooker and time adjusted as needed.

Printable Recipe for Crock Pot Chocolate Peanut Butter Lava Cake