Easy Chocolate Chip Mug Cake Recipe in a Microwave

Need a chocolate fix in a hurry? Say hello to this gooey hot chocolate chip mug cake recipe, made in a couple of minutes in the microwave. It's naturally Gluten Free with oat flour and is the perfect treat on a low fat diet.

Am I the only one who thinks that sometimes we need a comforting chocolate dessert, but don't have much time or want the effort? And you only have basic ingredients?

Well, here's my fluffy mug cake chocolate chip recipe you need to try! It takes less time to make than a full chocolate and vanilla cake. Minutes to prep and make, and results in a soft gooey chocolate brownie texture.

And the best part? You'll never believe that it's low fat, either, with 18 grams of protein. We love this chocolate microwave pudding as a quick sweet treat after dinner, or supper with fresh fruit, custard, or a scoop of vanilla ice cream.

Jump to:

• ✔️ Why You'll Love This Recipe
• 🛒 Ingredient Notes
• 📋 Instructions
• 👩‍🍳 Substitutions
• ⚖️ Variations
• 🔪 Equipment
• ❄️ Storage
• 💡Pro Tips
• 🍽️ Serving Suggestions
• ❓ FAQ
• ➕ More Easy Recipes
• 📖 Recipe
• 💬 Comments

✔️ Why You'll Love This Recipe

Here are a few reasons why we think this is the best mug cake recipe on a low fat diet!

• No oil used
• It's REALLY easy
• Minimal prep time
• Uses simple ingredients
• Low fat, but doesn't taste it
• Comforting and easy to customise
• Just minutes to make for a quick sweet tooth fix
• A single serving cake means less chance of overindulging
• Higher fibre and high protein compared to all purpose flour (plain)

🛒 Ingredient Notes

Please see the printable recipe card with exact ingredient quantities and preparation instructions at the bottom of this post.

Oats - it doesn't matter whether you're using old fashioned rolled oats (jumbo), or quick cook instant oats - you'll need to use a food processor to mill them into oat flour for the best results. If you don't have a food processor, then the best way would be to use Ready Brek

Egg - this is a whole egg to help the cake rise. We've made it with small and medium eggs.

Fat free natural yogurt - adds moisture for a fluffy chocolate chip mug cake that's low fat way as opposed to using melted butter or melted coconut oil. *This is if you don't microwave too long

Vanilla extract - helps enhance the chocolate flavour

Baking powder - this is to help the oat flour rise due to the lack of gluten. *Ensure you are using Gluten Free baking powder if needed. Note: this is not baking soda

Fruit syrup - you can use whatever sugar or powdered sweetener you prefer. We use Sweet Freedom fruit syrup for a low calorie option, or you could use 3 teaspoon of zero calorie natural sweetener caster sugar or brown sugar

Cocoa powder - for the perfect mug cake with a rich chocolate flavour

Milk chocolate chips - I chop my own into mini chocolate chips from whatever chocolate bar I have in the house as it is cheaper. But our favourite is Galaxy chocolate orange

📋 Instructions

Here are my step-by-step instructions on how to make a chocolate chip mug cake the healthier way!

Tip: Note, I use an 800 watt microwave, but as a rule, if there is a lot of any soft mixture on top, I microwave for longer in 20-second increments. However, I don't recommend going over 2 minutes, otherwise, it can turn dry

👩‍🍳 Substitutions

Depending on your dietary needs, here are a few simple swaps you can make and still result in a great recipe:

• Oat flour - swap for almond flour or coconut flour* for keto mug cakes, although this easy chocolate chip mug cake may not rise as much. *You don't need much flour: I would use with 2 tbsps of coconut flour initially, but you might want to use 1/16 teaspoon xanthan gum for a better bake
• Cocoa powder- swap for cacao powder, carob powder, or instant hot chocolate
• Egg - swap for a flax egg if preferred
• Natural yogurt - you can swap for cream cheese or any kind of milk or non-dairy milk such as soy milk, unsweetened almond milk, etc
• Vanilla extract - this could be vanilla essence, or almond extract which also tastes lovely
• Chocolate chips - swap for cacao nibs, peanut butter chips, white chocolate chips, or small fudge pieces for a chocolate fudge brownie cake taste. Or if you are on a strict weight loss diet, you can leave these out
• Fruit syrup - swap for maple syrup, coconut sugar, powdered sweetener or caster sugar, brown sugar, golden syrup, etc

⚖️ Variations

Here are some easy ways you can enhance and personalise this soft chocolate chip cookie cake recipe for next time:

• Espresso - enhance the fudgy chocolate with ½ teaspoon of espresso powder like my favorite cake: this espresso coffee chocolate brownie recipe
• White chocolate - add chunk of white chocolate with fresh raspberries
• Chocolate and banana - try using for 70g of milk, 20g of mashed banana (⅓ of a banana), and ½ tablespoon of creamy peanut butter for added fat
• Fresh fruit - for a sumptuous chocolate chip muffin in a mug, stir in some juicy fresh raspberries with mint, and blueberries or sour cherries to balance the sweetness
• Fruit and nut - similar to my fruit and nut chocolate brownies, you could stir in some dried fruit and chopped nuts such as walnuts and top with almond flakes
• Chilli - add some chilli powder for an extra warming flavour
• Deluxe - add a pinch of salt and extra spices such as a pinch of saffron, ground cardamom seeds, and ½ teaspoon cinnamon. If not low fat, you might want to add ½ teaspoon of vegetable oil or canola oil
• Kid friendly - top with banana slices, chocolate sauce, or cake sprinkles to make it more colourful

See my vanilla chocolate chip mug cake version here.

🔪 Equipment

Please note that as an Amazon Associate, I earn from qualifying purchases made through affiliate links.

• Measuring jug
• Measuring spoons
• Food processor

❄️ Storage

Storing - we prefer eating this chocolate chip cake in a mug recipe immediately after cooking it in the microwave. However, it can be stored in an airtight container, or covered with plastic wrap and refrigerated for up to 3 days.

Freezing - cool to room temperature and again, store in a freezer-safe container for up to 3 months.

Reheating - If you want to eat the next day, defrost in the fridge if required and microwave until piping hot. Note, you might want to add 1 tablespoon of water to prevent it from drying out

🍽️ Serving Suggestions

Ice cream - this hot mug cake with chocolate chips is perfect with a scoop of ice cream melting and soaking into the crumbs

Whipped cream - it's the perfect recipe with homemade whipped double cream or spray cream from a can

Custard - we also love to eat it with hot custard for pure comfort food on a cold day

Chocolate sauce - drizzle with your favourite chocolate sauce, or even caramel or fudge sauce

Fresh fruit - such as mixed berries goes perfectly with

Yogurt - for a healthier option, drizzle over some extra yogurt and berries for a refreshing taste

Lotus biscuits - crumble some biscoff biscuits on top of your breakfast oats along with a dollop of yogurt with fruit for a cheesecake taste

❓ FAQ

➕ More Easy Recipes

If you love easy desserts that use a handful of pantry staples like these easy mug cake recipes, then you might also like these:

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📖 Recipe