Desserts · Part 2 of 3: Instructions
Slow-Cooker Snickers Lava Cake for Easy Decadent Dessert Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 8
Before you start
Before starting, ensure your slow cooker is clean and ready for use. Have all your ingredients measured and the Snickers bars chopped into uniform pieces.
If your cake mix requires additional ingredients like eggs or oil, prepare the batter fully according to the package instructions before pouring it into the slow cooker basin. Clear enough counter space to work comfortably and ensure you have a long-handled spoon ready for serving the cake once it is finished.
Ingredients at a glance (7)
- 1 box chocolate peanut butter cake batter, prepared
- 15 pieces fun-size Snickers bars, chopped
- 1/2 cup salted roasted peanuts
- 1/2 cup caramel bits
- 1 cup hot cocoa water
- vanilla ice cream, for serving
- warm caramel sauce, for serving
Instructions
Preparation Phase
- Prepare the Batter and FillingIn a large bowl, prepare the chocolate peanut butter cake batter according to the package instructions. On a cutting board, chop the fun-size Snickers bars into bite-sized pieces. Ensure all ingredients are measured and ready for layering in the slow cooker bowl.Look for Batter should be smooth and chocolate bars chopped evenly.Tip Use a sharp knife to chop the candy bars cleanly without squashing them.
At the end of this phase, you should have a smooth, well-mixed cake batter and evenly chopped candy bars. Everything should be measured and prepared, ensuring that the layering process can be completed quickly and efficiently. Check that your slow cooker is plugged in and the basin is clean, so you are ready to begin the assembly without any interruptions or delays in the workflow.
Layering Phase
- Layering the CrockpotPour the prepared chocolate batter into the 6-quart slow cooker. Evenly scatter the chopped Snickers bars, salted roasted peanuts, and caramel bits over the surface of the batter. Pour the hot cocoa water over the mixture to help create the molten lava effect during the cooking process.Look for Batter is evenly distributed with candy and peanuts scattered on top.Tip Do not over-mix after adding the water; a gentle pour ensures the layers remain intact.
After layering the ingredients, the slow cooker should contain a uniform base of batter topped with the candy, peanuts, and caramel. The hot cocoa water should be poured carefully to ensure it settles into the mixture without displacing the toppings.
Everything should look organized and ready for the transformation that will occur during the long, slow-cooking cycle that follows this assembly step.
Cooking Phase
- Slow Cooking the Lava CakeCover the slow cooker with the lid and set to cook on HIGH for exactly 2.5 hours. During this time, the nougat and caramel will melt into a bubbling peanut-fudge lava pool underneath the chocolate crust. Once finished, scoop the cake into bowls and top with vanilla ice cream and warm caramel sauce.Look for Edges are set, and the center is bubbling with melted caramel and chocolate.Tip Check the center after 2 hours; it should remain moist and slightly molten.
During the final phase, the cake should release a rich, chocolatey aroma as it cooks. The edges will look dark and set, while the center will bubble with the melting candy bars and caramel. Once the 2.5 hours are up, the cake should be soft, warm, and ready to be scooped immediately, providing that perfect molten center that is the hallmark of this delicious, easy dessert.
Common mistakes
A common mistake is opening the lid too frequently, which allows heat to escape and disrupts the cooking process. Keep the lid closed for the entire duration of the 2.5 hours to maintain a stable environment.
Another error is failing to chop the candy bars into small enough pieces, which can lead to uneven melting. Finally, ensure the cake mix is fully prepared before adding it to the slow cooker to avoid pockets of dry flour in the final dessert.
How to tell it’s done
The lava cake is done when the edges are firm to the touch and the cake has risen slightly. The center should still appear soft and slightly wobbly, indicating that the caramel and nougat have melted into a molten pool.
Avoid over-cooking, as this will cause the center to solidify rather than remain gooey. The total cooking time of 2.5 hours on high is typically perfect for this consistency, but observe the center carefully as it finishes.
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)