A soft, swirled, bakery-style Marble Mug Cake made right in the microwave! Fluffy vanilla batter meets rich chocolate batter, topped with creamy homemade frosting and chocolate shreds. Quick, cozy, and perfect when you can’t decide between chocolate or vanilla.
Chefadora AI has the answer - timers, swaps, step-by-step help.
In a small bowl, whisk flour, sugar, baking powder, and salt.
Add milk, oil (or butter), and vanilla; mix until smooth.
In another bowl, whisk flour, sugar, cocoa powder, baking powder, and salt.
Add milk, oil (or butter), and vanilla; mix until smooth.
Lightly grease a large microwave-safe mug.
Drop alternating spoonfuls of vanilla and chocolate batter, then swirl gently with a toothpick.
Cook for 80–90 seconds, until the top looks set but the center is still soft.
Let rest for 1 minute.
Beat cream cheese, butter, powdered sugar, and vanilla essence until creamy.
Spread frosting over cooled cake and top with shredded chocolate.
Enjoy!
Serve warm with a scoop of vanilla ice cream.
Pair with coffee, hot chocolate, or a glass of milk.
Drizzle with chocolate or caramel sauce for extra flavor.
Use oat flour for a gluten-free option.
Cook time may vary based on microwave wattage; adjust accordingly.
Can I make this recipe vegan?
Yes, use dairy-free milk, vegan butter, and vegan cream cheese to make it vegan.
What should I do if the cake turns out dry?
Reduce the cooking time by 10 seconds to prevent dryness.
Can I make the frosting ahead of time?
– Absolutely! The cream cheese frosting can be prepared a day in advance and stored in the fridge. Just let it soften at room temp before spreading.
Can I substitute the flour for a gluten-free option?
Yes, you can use oat flour as a gluten-free alternative.
Why does the chocolate part sometimes cook faster than the vanilla part?
– Cocoa absorbs more microwave energy, so it heats slightly quicker. A gentle swirl helps even out cooking.
How do I prevent a rubbery texture?
Avoid overmixing the batter and ensure you don't overcook the cake.
Can I make the marble effect without a toothpick?
– Yes! You can use the tip of a butter knife, a chopstick, or even the handle of a spoon.
Why does my mug cake feel rubbery if I reheat it?
– Mug cakes dry out fast in the microwave. If you must reheat, cover with a damp paper towel and heat in 10-second bursts.
Can I store the mug cake for later?
It is best eaten fresh, but if frosted, you can refrigerate it for up to 24 hours.
I’m Rajani, a passionate cook with over 15 years of experience creating delicious, approachable dishes. My love for food began in childhood, inspired by watching Sanjeev Kapoor’s Khana Khazana with my mom and helping her in the kitchen. On The Gourmet’s Hut, I share tried-and-tested authentic Indian recipes and quick microwave mug cake recipes perfect for busy days. My goal is to make cooking simple, flavorful, and fun—because food brings people together and every meal should create memories.
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