This S’mores Cake in the Slow Cooker is a delightful twist on the classic campfire treat, combining rich chocolate cake, gooey marshmallows, and crunchy graham crackers. Perfect for cozy gatherings, this hassle-free dessert is made effortlessly in your slow cooker, ensuring a warm, indulgent treat with minimal effort.
Why You’ll Love This Recipe
This S’mores Cake in the Slow Cooker is a crowd-pleaser that brings the nostalgic flavors of a campfire S’mores to your kitchen without the fuss. The slow cooker does all the heavy lifting, creating a moist chocolate cake studded with gooey marshmallows and crunchy graham crackers. It’s perfect for busy days when you want a decadent dessert with minimal effort. Whether you’re hosting a family gathering or craving a cozy treat, this recipe delivers rich, indulgent flavors that evoke summer nights by the fire. Plus, the warm chocolate drizzle and melty marshmallows make every bite irresistible, ensuring smiles all around.
Recipe Tips and Tricks
- Liner Hack: Use a slow cooker liner for effortless cleanup, especially with sticky marshmallows.
- Even Cooking: Rotate the slow cooker insert halfway through cooking if your model has hot spots.
- Fresh Crumbs: Crush graham crackers just before use to maintain their crisp texture.
- Marshmallow Control: Add marshmallows in layers to avoid sinking and ensure even distribution.
- Drizzle Timing: Prepare the chocolate drizzle just before serving to keep it glossy and warm.
S'mores Cake in the Slow Cooker in Slow Cooker

Indulgent S'mores Cake cooked in a slow cooker, delivering gooey chocolate, marshmallow, and graham cracker flavors effortlessly.
Ingredients
- 1 box (15.25 oz) chocolate cake mix
- 1 cup graham cracker crumbs
- 1 cup mini marshmallows
- 1 cup semi-sweet chocolate chips
- 1 cup water
- 1 tsp vanilla extract
- 1/2 cup unsalted butter, melted
- 1/3 cup vegetable oil
- 1/4 cup heavy cream
- 3 large eggs
Instructions
- Prepare the Slow Cooker: Lightly grease a 6-quart slow cooker with non-stick spray to prevent sticking and ensure easy removal.
- Mix the Cake Batter: In a large bowl, combine the chocolate cake mix, water, vegetable oil, and eggs. Whisk until smooth and lump-free.
- Add Graham Cracker Layer: Spread half of the graham cracker crumbs evenly across the bottom of the slow cooker for a crunchy base.
- Pour the Batter: Gently pour the chocolate cake batter over the graham cracker crumbs, spreading it evenly with a spatula.
- Top with Goodies: Sprinkle half of the chocolate chips and mini marshmallows over the batter for gooey, melty pockets.
- Add More Crumbs: Dust the remaining graham cracker crumbs over the top for extra texture and S'mores flavor.
- Cook Low and Slow: Cover and cook on low for 2 hours, until the cake is set but still slightly soft in the center.
- Make the Drizzle: In a small saucepan, melt the butter with heavy cream over low heat. Stir in vanilla and remaining chocolate chips until smooth.
- Drizzle and Serve: Pour the chocolate drizzle over the warm cake, top with extra marshmallows, and let cool for 10 minutes.
- Enjoy Warm: Scoop the cake into bowls and serve warm for the ultimate gooey, S'mores-inspired dessert experience.
Notes
- Check the cake at 1.5 hours, as slow cooker times may vary.
- For a toasted marshmallow effect, broil extra marshmallows briefly and sprinkle on top before serving.
- Use a liner for easier cleanup if desired.
Nutrition Information
Yield
8Serving Size
1Amount Per ServingCalories 649Total Fat 35gSaturated Fat 16gTrans Fat 0gUnsaturated Fat 17gCholesterol 109mgSodium 564mgCarbohydrates 81gFiber 2gSugar 47gProtein 7g
The recipes and nutritional information on Yum Tonight are for informational purposes only. Always consult a healthcare provider for personalized dietary advice.
Ingredients Notes
The chocolate cake mix forms the rich, moist base, and any brand works well—choose your favorite for consistent results. Graham cracker crumbs add that signature S’mores crunch; crush whole crackers for fresher flavor. Mini marshmallows melt perfectly, creating gooey pockets, while semi-sweet chocolate chips balance sweetness. Unsalted butter and heavy cream enhance the decadence, and vanilla extract adds warmth. Use fresh eggs for better emulsification and cake structure.
Variations and Substitutions
- Cake Mix Swap: Use devil’s food or dark chocolate cake mix for a richer flavor, or gluten-free mix for dietary needs.
- Marshmallow Options: Swap mini marshmallows for marshmallow fluff for an extra gooey texture, spreading it in thin layers.
- Chocolate Choices: Try milk chocolate or dark chocolate chips for a different sweetness level, or use chopped chocolate bars.
- Crumb Alternatives: Substitute graham crackers with crushed digestive biscuits or shortbread for a unique twist.
- Add-Ins: Mix in crushed peanuts or toffee bits for extra crunch, or add a pinch of cinnamon for warmth.
- Dairy-Free: Use plant-based butter and coconut cream instead of butter and heavy cream for a dairy-free version.
Storage Options
- Refrigerator: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat gently in the microwave for 15-20 seconds to restore gooeyness.
- Freezer: Freeze individual portions wrapped tightly in plastic wrap and foil for up to 1 month. Thaw overnight in the fridge before reheating.
- Serving Tip: Serve cold leftovers with whipped cream for a chilled S’mores treat.
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