3-Ingredient Slow Cooker Chocolate Pumpkin Dessert with Marshmallows
Some recipes become family traditions not because they are complicated, but because they are so irresistibly good that everyone looks forward to them every single year. This slow cooker dessert is exactly that kind of recipe. With just three humble ingredients, it comes together effortlessly and delivers a rich, gooey, deeply comforting treat that feels tailor-made for crisp autumn evenings and holiday gatherings alike.
What you get is a bubbling, fudgy chocolate and pumpkin base crowned with pillowy soft marshmallows and a dusting of brown sugar and cinnamon. The slow cooker does all the heavy lifting, filling your home with the most incredible aroma while you focus on everything else happening in the kitchen. It is the kind of dessert that disappears within minutes of being set on the table.
Why You Will Love This Recipe
There is something truly magical about a dessert that asks so little of you but gives back so much in flavor. The combination of chocolate and pumpkin is a surprisingly perfect pairing — the earthiness of the pumpkin balances the richness of the chocolate beautifully. The marshmallows melt slightly into the warm mixture, adding a creamy, sweet contrast that makes every spoonful feel like a hug in dessert form.
Ingredients
- 1 can (15 oz) pumpkin puree
- 1 box (15.25 oz) chocolate cake mix
- 2 cups mini marshmallows
- Optional: brown sugar and ground cinnamon for topping
Method
- Lightly grease the inside of your slow cooker with non-stick cooking spray to prevent sticking.
- In a large mixing bowl, combine the canned pumpkin puree and the dry chocolate cake mix. Stir well until a thick, uniform batter forms. Do not add any additional ingredients called for on the cake mix box — just the pumpkin and the dry mix.
- Pour and spread the batter evenly into the bottom of the prepared slow cooker.
- Scatter the mini marshmallows generously over the top of the batter, covering as much of the surface as possible.
- If desired, sprinkle a small amount of brown sugar and a pinch of ground cinnamon over the marshmallows for added warmth and sweetness.
- Place the lid on the slow cooker and cook on LOW for 2 to 2.5 hours, or until the edges are set and the marshmallows have puffed and softened into the dessert.
- Turn off the slow cooker and allow the dessert to rest for about 10 minutes before serving. Scoop directly from the slow cooker and serve warm.
Serving Suggestions
This dessert is absolutely wonderful served on its own, but a scoop of vanilla ice cream or a dollop of freshly whipped cream on top takes it to an entirely new level. The cold creaminess against the warm, gooey chocolate pumpkin base is nothing short of spectacular. It pairs beautifully with a cup of hot apple cider or spiced coffee on a cool fall evening.
Tips for the Best Results
Make sure you are using plain pumpkin puree and not pumpkin pie filling, which contains added spices and sweeteners that can alter the flavor and texture. Every slow cooker runs at a slightly different temperature, so start checking around the two-hour mark. The dessert is ready when the center looks mostly set and the marshmallows have melted and turned lightly golden at the edges. Avoid lifting the lid too frequently during cooking, as this releases heat and extends the cooking time.
Make It Your Own
While the three-ingredient version is perfection on its own, you can easily customize this dessert to suit your taste. Try adding a handful of chocolate chips to the batter before cooking for extra richness. A sprinkle of chopped pecans or walnuts over the top adds a lovely crunch. You can also swap the chocolate cake mix for a spice cake mix if you want the pumpkin flavor to shine even more prominently.









