This quick and easy Chocolate Mug Cake is the ultimate fix for late-night cravings or when you want a warm, single-serve dessert without the effort. Made in minutes using the microwave, it's moist, rich, and completely egg-free.
If you've never tried a Chocolate Mug Cake, you're in for a treat. It's the kind of dessert that feels like a hug in a mug - quick to make, rich in flavour, and perfect for those moments when you need something sweet and soothing.
What I love most is that there's no egg in this recipe - I've found mug cakes with egg can turn out rubbery and inedible. If you want a mug cake that is completely plant based, try my Vegan Mug Brownie.
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Why You'll Love This Recipe
- Egg-free – so it's soft, not tough (and more budget-friendly, too!).
- Ready in minutes using just your microwave.
- Made from pantry staples – no fancy ingredients needed.
Recipe Ingredients
Note: The full quantities are listed in the printable recipe card at the bottom of the post.
- Self-raising flour – also called self-rising flour in some countries.
- Baking powder – adds extra fluffiness.
- White sugar – granulated or caster sugar both work.
- Cocoa powder – use unsweetened for the most decadent flavour.
- Vegetable oil – or swap for melted butter if you prefer.
- Milk – full cream or light milk both work well.
How to Make a Chocolate Mug Cake
Note: This is a summary of the instructions. The full ingredients and instructions are shown in the recipe card below.
Step 1
Add the dry ingredients to a microwave-safe mug and mix with a fork to combine.
Step 2
Add the milk and oil, then whisk until smooth and combined.
Step 3
Place a kitchen towel on the microwave turntable, put the mug on top, and microwave for 60–70 seconds. Timing may vary - see the tips below.
Expert Tips
- Microwave strength varies – check your mug cake after 60 seconds and cook in 10–15 second bursts if needed.
- Use a microwave-safe mug that holds at least 400 ml to avoid overflow.
- Place a paper towel under the mug to catch any spills.
- Don't overmix – stir just until the ingredients come together.
- Let the cake cool for 1–2 minutes before eating – it will firm up slightly as it rests.
Substitutions
Vegetable oil → can be swapped for unsalted melted butter.
Variations
Flavour twists to add to the mug cake before microwaving:-
- Spicy – add a pinch of cinnamon or cayenne pepper.
- Nutty – stir in chopped walnuts or almonds.
- Minty – add a drop of peppermint extract.
- More chocolatey - add some chocolate chips!
Serving Suggestions
- Add a scoop of vanilla ice cream or whipped cream on top.
- Drizzle with chocolate sauce or caramel.
- Dust with icing sugar for a simple finish.
Storage
This mug cake is best eaten straight away while warm and fluffy. If left to sit, it can become dense.
Common Questions
Yes! Mix the batter in a bowl, divide it evenly between two mugs, and microwave one mug at a time.
Yes - ensure it's microwave-safe and holds enough volume (at least 400 ml).
It's best not to for this recipe as chocolate powder contains added sugar and milk solids that affect the texture.
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📖 Recipe
Chocolate Mug Cake (No Egg)
Ingredients
- 4 tablespoons self-raising flour, (known as self-rising flour in the US/Canada)
- ¼ teaspoon baking powder
- 2 tablespoons white sugar, caster or granulated
- 4 teaspoons cocoa powder, unsweetened
- 5 tablespoons full cream milk, or light milk
- 2 teaspoons vegetable oil, or melted butter
Instructions
- Add the dry ingredients: Place the flour, baking powder, cocoa powder and sugar into a microwave-safe mug. Stir with a fork to combine.
- Mix in the wet ingredients: Pour in the milk and vegetable oil. Whisk together until the mixture is smooth and well combined.
- Prepare the microwave: Lay a piece of kitchen paper on the microwave turntable and place the mug on top – this helps catch any spills.
- Microwave the cake: Microwave on high for 60–70 seconds, depending on the wattage of your microwave. See notes below for timing tips.
- Cool slightly and enjoy: Let the cake cool for a minute or two before digging in – it will be hot!
Notes
Storage
This mug cake is best enjoyed immediately; otherwise, it will go soggy.Tips
- Use a microwave-safe mug that holds at least 400 ml to prevent overflow.
- Don't overmix – stir just until combined to keep the cake light.
- Let the mug cake cool for a minute or two before eating - it will firm up slightly as it rests.
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