Crockpot S’mores Hot Fudge Cake: Indoor Campfire Dessert

There's nothing like the nostalgic taste of s'mores, but who wants to build a fire just for dessert? This Crockpot hot fudge cake delivers all the campfire flavor with minimal effort.

Layer crushed graham crackers, chocolate cake batter, milk chocolate chunks, and a hot fudge pudding topping, then let the slow cooker work its magic. The result is a molten, gooey, marshmallow-topped cake that's perfect for cozy nights and easy entertaining. Just dump, cook, and dig in—your indoor campfire is ready.

Imagine the taste of campfire s'mores without the smoke and mosquitoes. This slow cooker dessert layers honey graham crackers, rich chocolate cake, and a fudgy pudding sauce, all topped with a blanket of puffed marshmallows. It's a dump-and-go recipe that requires minimal prep and delivers maximum comfort.

The slow cooker does all the work, turning simple ingredients into a decadent, spoonable cake with a gooey center and a crackly marshmallow top. Perfect for weeknight treats or weekend gatherings, this cake is sure to become a family favorite.

Ingredients

Why this recipe works

The slow cooker creates a moist, tender cake with a fudgy sauce layer that forms naturally as the pudding mix cooks into the batter. The low, steady heat allows the flavors to meld and the chocolate to melt into a luscious, molten center. The result is a cake that's almost like a warm chocolate lava cake, with a soft, spoonable texture that's irresistible straight from the pot.

Layering the ingredients in the order specified—graham crackers on the bottom, then cake batter, chocolate chunks, and pudding—ensures each component retains its identity while contributing to the overall harmony.

The graham crackers soften slightly, creating a subtle crust, while the pudding forms a rich sauce that infuses the cake with moisture. The marshmallows on top puff and melt into gooey clouds, completing the s'mores experience.

Notes and substitutions

For the best texture, use a standard-size box of chocolate cake mix (about 15.25 ounces) and prepare it with the eggs, oil, and water as directed on the box. The hot fudge pudding mix adds a deep chocolate flavor and creates the sauce; if you can't find it, instant chocolate pudding mixed with a tablespoon of cocoa powder works. Use good-quality milk chocolate chunks—they melt into pockets of creamy chocolate.

This recipe is naturally flexible: you can use gluten-free cake mix and gluten-free graham crackers to make it gluten-free (check all labels). The slow cooker size matters—a 6-quart is ideal to prevent overflow.

If your slow cooker runs hot, check the cake at the 2-hour mark; it should be set around the edges but still slightly moist in the center. The marshmallows should be added after the cake is fully cooked, as they only need a few minutes to soften.

• chocolate cake mix: Use a gluten-free chocolate cake mix to make the dessert gluten-free (ensure other ingredients are gluten-free).
• milk chocolate chunks: Semi-sweet or dark chocolate chunks can replace milk chocolate for a less sweet result.
• hot fudge pudding mix: Instant chocolate pudding mix can be used; add 1/4 cup unsweetened cocoa powder to mimic the fudge flavor.
• vegetable oil: Melted coconut oil or canola oil works in place of vegetable oil.

Equipment

• 6-quart slow cooker
• Mixing bowl
• Whisk
• Measuring cups and spoons
• Spatula
• Small bowl for pudding mix