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This slow cooker molten lava cake is a decadent gift to yourself or someone you love. A fudgy chocolate cake layer sits on top of a silky, molten chocolate sauce that forms underneath as it cooks, creating the ultimate warm, gooey dessert that’s perfect for Valentine’s Day, date nights, or a special treat. Serve it warm with vanilla ice cream and get ready to swoon!
See recipe card below for full list of measurements, ingredients, and instructions.
Cherylโs Note
Romantic date nights or Valentineโs Day deserve something rich and decadent, so while you plan your menu for this lovey-dovey holiday, consider these other sweet ideas:
- Sweet and Simple Dessert Charcuterie Board (you could include the kids on this one!)
- Valentineโs Dessert Board
- Cookie Butter Creme Brulee
- Chocolate Paleo Cupcakes with Dark Chocolate Frosting (Gluten Free, Dairy Free)
Why This Recipe is So Good
- This is the easiest show-stopping dessert you’ll ever make — seriously, it takes just 10 minutes to mix everything together, then your slow cooker does all the work while you focus on literally anything else. The result? A restaurant-quality molten chocolate dessert that’ll have everyone asking for your secret.
- This is the kind of dessert you serve when you want to impress your partner without slaving away in the kitchen for hours. It’s cozy, indulgent, and feels way fancier than the effort required. Perfect for Valentine’s Day, anniversaries, or “just because I love you” nights.
- Here’s the best part: this can even feed folks at a party beautifully. With 10-12 servings, it’s ideal for family gatherings, dinner parties, or holiday entertaining. Everyone gets that warm, gooey chocolate experience, and youโre anointed the ultimate host!
What You Need to Know Before You Start
- Folding a clean dish towel under the slow cooker lid is non-negotiable here — it absorbs condensation and prevents water from dripping onto your cake. Without this step, you’ll end up with a soggy top instead of that beautiful fudgy texture. I promise, friend, this simple trick makes all the difference.
- It can be SO tempting to mix everything together, but resist! The magic happens when you let the pudding layer sit on top of the cake batter, and the chocolate chips sit on top of the pudding. As it cooks, the pudding sinks down and creates that molten sauce underneath while the cake rises to the top.
- Your cake is ready when the edges are set and firm but the center still has a slight jiggle to it. If you overcook it, you’ll lose that molten lava effect and end up with just regular cake (still delicious, but not the goal here). Start checking around 3 hours and watch it closely in that final 30 minutes.
Recipe Variations
Make it Extra Decadent: Stir 1 teaspoon instant espresso powder into the cake batter to intensify the chocolate flavor. The coffee undertones make the chocolate taste even richer without making it taste like coffee.
Add Some Crunch: Sprinkle ยฝ cup chopped pecans or walnuts over the chocolate chips before cooking. They’ll toast slightly in the slow cooker and add a delicious textural contrast.
Make it Minty: Use mint chocolate chips instead of regular milk chocolate chips, or add ยฝ teaspoon peppermint extract to the cake batter. Serve with mint chocolate chip ice cream for a full mint-chocolate experience.
Make it Boozy: Add 2 tablespoons Kahlua, Bailey’s, or bourbon to the pudding mixture before pouring it over the cake batter. The alcohol cooks off mostly but leaves behind incredible depth of flavor. (Obviously, skip this for family dinners with kids!)
Frequently Asked Questions
A 6-quart slow cooker is really the ideal size here. If you only have a 5-quart, reduce all ingredients by about 20% to prevent overflow. Smaller slow cookers (3 to 4-quart) won’t work for this full recipe, as you’d need to cut it in half. Larger slow cookers (7-quart or bigger) will spread the batter too thin, which changes the cooking time and texture.
This likely means the dish towel trick wasn’t used, or the towel slipped and didn’t stay under the lid properly. Condensation from the lid drips down onto the cake and makes it soggy. Make sure your towel is folded and positioned correctly under the lid before you start cooking, and don’t lift the lid during cooking.
Yes, just swap the regular milk for unsweetened oat milk or almond milk in both the cake batter and pudding mixture. Use dairy-free chocolate chips (many dark chocolate varieties are naturally dairy-free). The texture will be slightly less rich, but it’s still absolutely delicious.
The edges should be set and firm, while the center still has a slight jiggle. If you insert a toothpick near the center, it should come out with moist crumbs (not wet batter, but not completely clean either). The top should look set rather than liquidy. If you’re unsure, cook for another 15 minutes and check again.
Not really, cooked pudding mix requires heat to thicken, and we need the pudding to thicken with just cold milk before it goes into the slow cooker. Instant pudding is essential for this recipe to work properly. If you only have cook-and-serve, prepare it on the stovetop according to package directions, let it cool to room temperature, then use it in the recipe.
Any ice cream works! Chocolate, coffee, salted caramel, and mint chocolate chip are all fantastic with this. You could also use whipped cream, Cool Whip, or even a drizzle of caramel sauce if you prefer.
More Sweet Dessert Recipes
- โโโโClassic Rhubarb Tart with Frangipane Filling
- Saltine Toffee
- Vegan Thin Mints
- Cream Cheese Fruit Dip (No Marshmallow Fluff!)
- Paleo Lime Bars (Gluten Free, Dairy Free)
- Keto Cookie Dough (Sugar Free, Gluten Free, Egg Free)
- Air Fryer Chocolate Chip Cookies
- The Best Avocado Chocolate Mousse (Vegan, Dairy Free)
- Keto Cake Balls
- Keto White Chocolate Raspberry Cheesecake (Sugar-Free)
Making changes to a recipe can result in recipe failure. Any substitutions or variations listed are simple changes that I believe will work in this recipe, but results are not guaranteed.
Slow Cooked Molten Lava Cake
Equipment
- 6-quart slow cooker with lid
- large mixing bowl
- medium mixing bowl
- Whisk or electric mixer
- Spatula
- Non-stick cooking spray
- Clean dish towel
- wire cooling rack or heat-safe surface
Ingredients
- 1 box chocolate fudge cake mix about 15.25 ounces
- 1 cup milk
- ยฝ cup vegetable oil
- 3 large eggs
- 1 box chocolate pudding mix 4-serving size, about 4 ounces instant
- 2 cups cold milk
- 11-12 ounces milk chocolate chips about 2 cups
Instructions
- Spray inside of 6-quart slow cooker insert generously with non-stick cooking spray, coating bottom and sides completely.
- Add 1 box (about 15.25 ounces) chocolate fudge cake mix, 1 cup milk, ยฝ cup vegetable oil, and 3 large eggs to large mixing bowl.
- Whisk or beat with electric mixer until completely smooth with no lumps, about 1 to 2 minutes.
- Pour cake batter into prepared slow cooker insert and smooth top into even layer with spatula.
- In separate medium bowl, whisk together 1 box (4-serving size, about 4 ounces) instant chocolate pudding mix with 2 cups cold milk for 1 to 2 minutes until mixture thickens.
- Pour thickened pudding mixture evenly over cake batter in slow cooker. Do not stir or mix layers together.
- Sprinkle 11 to 12 ounces (about 2 cups) milk chocolate chips evenly over pudding layer. Do not stir.
- Fold clean dish towel in half and place directly on top of slow cooker insert, then place lid on top of towel.
- Cook on Low for 3 hours to 3 hours 30 minutes, until edges are set and firm but center still has slight jiggle.
- Turn off slow cooker and carefully remove ceramic insert from heating base. Set on wire cooling rack or heat-safe surface.
- Remove lid and towel. Let cake stand uncovered for 30 minutes.
- Scoop portions into bowls, making sure to get both cake and molten sauce from underneath. Top with vanilla ice cream or ice cream of your choice and serve immediately.
Approximate Information for One Serving
Nutrition Disclaimers
Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.
Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.
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