Craving dessert but don’t have time (or energy) for baking? Gooey Chocolate Marshmallow Mug Cake is your ultimate quick-fix indulgence rich, fudgy chocolate topped with melted mini marshmallows, all ready in just five minutes.
At dishfoody.com, I believe dessert should bring instant joy without hassle, and this mug cake embodies exactly that. Over the years, I’ve tested dozens of microwave cakes, and this one stands out for its texture, intense chocolate flavor, and perfect sweetness.
In this post, discover why this recipe works every single time, simple ingredients you already have, foolproof steps, fun variations, and serving ideas that will make your mug cake moment extraordinary.
Why This Gooey Chocolate Marshmallow Mug Cake Recipe Works
- Uses pantry staples like flour, cocoa, and sugar no fancy ingredients or mixers required.
- Ready in 5 minutes from start to finish ideal for late-night cravings or last-minute treats.
- Perfectly gooey thanks to melted marshmallows and minimal overcooking.
Choosing the Right Ingredients for Gooey Chocolate Marshmallow Mug Cake
Best Ingredients for This Recipe
Use unsweetened cocoa powder for deep flavor and mini marshmallows for an even melt. Dark chocolate chips or chunks add extra richness.
Buying Tips
Always check the freshness of baking powder for proper rise, and choose small, high-quality marshmallows that melt evenly.
Substitutions
Out of marshmallows? Try caramel chips, Nutella, or a spoon of peanut butter in the center for a molten surprise.
Ingredients & Prep for Gooey Chocolate Marshmallow Mug Cake
Prep Essentials
Mix your dry ingredients flour, cocoa powder, sugar, and a pinch of salt in a microwave-safe mug. Add milk, oil, vanilla, and mix until smooth.
Marshmallow Magic (The “Double Goo Factor”)
Stir in half your marshmallows into the batter, then sprinkle the rest on top before microwaving for that perfect gooey topping.
Pantry Staples
All-purpose flour, cocoa powder, sugar, milk, vegetable oil, baking powder, salt, vanilla extract, mini marshmallows, and chocolate chips (optional).

Step-by-Step Cooking Instructions for Gooey Chocolate Marshmallow Mug Cake
Pre-Cooking Prep for Gooey Chocolate Marshmallow Mug Cake
Use a large mug (at least 10–12 oz) to prevent overflow. Spray or lightly grease with oil.
Cooking Method for Gooey Chocolate Marshmallow Mug Cake
Microwave on high for 60–70 seconds, depending on your microwave wattage. The center should remain slightly moist it will keep cooking after you stop the microwave.
Doneness Check for Gooey Chocolate Marshmallow Mug Cake
The cake should be set around the edges with a soft, gooey center. The marshmallows should be melted and slightly golden.
Resting for Gooey Chocolate Marshmallow Mug Cake
Let rest 1–2 minutes to cool slightly and achieve a fudgier consistency.
Pro Tips for Perfect Gooey Chocolate Marshmallow Mug Cake
Avoiding Dry, Rubbery Cake
Do not overcook it’s better to underheat, as the batter continues cooking from residual heat.
Tool Recommendations
Use a microwave-safe ceramic mug; a fork or whisk for mixing in the mug works best.
Storage & Reheating
Best enjoyed immediately! For leftovers, store covered in the fridge up to 12 hours and reheat gently for 10 seconds.
Flavor Variations for Gooey Chocolate Marshmallow Mug Cake
Spicy Twist
Add a pinch of cayenne or cinnamon for a Mexican hot chocolate vibe.
Keto/Paleo
Use almond flour, a sugar substitute, and unsweetened almond milk.
Global Flavors
Add a drizzle of tahini or sprinkle of flaky sea salt for a gourmet twist.
| Variation | Key Ingredient | Dietary Tag | Flavor Note |
|---|---|---|---|
| Spicy Twist | Cayenne, cinnamon | Spicy | Warm & aromatic |
| Keto/Paleo | Almond flour, stevia | Low-carb | Light & nutty |
| Global | Tahini, sea salt | Fusion | Savory-sweet pop |
Serving Suggestions for Gooey Chocolate Marshmallow Mug Cake
Top with a scoop of ice cream, whipped cream, or drizzle of chocolate syrup. Pair with espresso or a glass of cold milk for perfection.
FAQs for Gooey Chocolate Marshmallow Mug Cake
Can I make this without marshmallows?
Yes swap with chocolate chips, peanut butter, or caramel chunks.
How do I prevent the cake from overflowing?
Use a mug large enough for the batter to rise freely (about two-thirds full).
Can I bake this in an oven?
Yes bake in an oven-safe ramekin at 350°F for about 12 minutes.
Conclusion
Satisfy your sweet tooth in minutes with Gooey Chocolate Marshmallow Mug Cake soft, fluffy, and irresistibly molten. Join thousands at dishfoody.com who love fuss-free, joyful recipes. Next, dive into our Chocolate-Dipped Halloween Strawberries for a savory culinary adventure!
PrintGooey Chocolate Marshmallow Mug Cake
A warm, rich Gooey Chocolate Marshmallow Mug Cake that’s ready in just minutes perfect for satisfying your sweet cravings instantly with melty chocolate and fluffy marshmallows.
- Prep Time: 5 mins
- Cook Time: 1 min
- Total Time: 6 mins
- Yield: 1 serving 1x
- Category: Dessert
- Method: Microwave
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 4 tbsp all-purpose flour
- 2 tbsp cocoa powder
- 2 tbsp sugar
- 1/4 tsp baking powder
- Pinch of salt
- 3 tbsp milk
- 2 tbsp melted butter or oil
- 1/4 tsp vanilla extract
- 2 tbsp chocolate chips
- 2 large marshmallows or a handful of mini marshmallows
Instructions
- 1. In a microwave-safe mug, whisk together flour, cocoa powder, sugar, baking powder, and salt.
- 2. Stir in milk, melted butter, and vanilla extract until smooth.
- 3. Fold in chocolate chips.
- 4. Press marshmallows gently into the center of the batter.
- 5. Microwave on high for 60–75 seconds, until the cake rises and is just set on top.
- 6. Let cool slightly before digging into the gooey center.
Notes
- Microwave times may vary start with 60 seconds and add more time in 10-second increments.
- Add a drizzle of caramel or a sprinkle of sea salt for a gourmet touch.
- For an extra-rich flavor, use dark cocoa powder or a piece of chocolate in the center instead of chips.
Nutrition
- Serving Size: 1 mug cake
- Calories: 420
- Sugar: 35g
- Sodium: 160mg
- Fat: 22g
- Saturated Fat: 10g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 52g
- Fiber: 3g
- Protein: 6g
- Cholesterol: 40mg
Keywords: Gooey Chocolate Marshmallow Mug Cake, easy mug dessert, single serve cake, chocolate craving fix

