Hot Chocolate Mug Cake
This single serve hot cocoa mug cake is basically a warm hug in dessert form. Rich, chocolatey, and topped with melty marshmallows, it’s what happens when your favorite mug of hot cocoa turns into a cozy cake you can eat with a spoon. Perfect for late night cravings, snowy afternoons, or when you want something sweet right now without committing to a whole batch, just mix, microwave, and enjoy the ultimate comfort dessert!
Little Trick for Big Flavor
The key to the perfect thot cocoa mug cake is using hot cocoa mix instead of just cocoa powder. It adds sweetness, creaminess, and that nostalgic flavor that makes this taste like a true cup of hot chocolate in cake form. Keep an eye on tit while microwaving, since every microwave is different, and stop as soon as the top looks set but still soft for the fudgiest texture. Want to switch it up? You can add a few chocolate chips before microwaving, or a pinch of cinnamon or espresso powder to deepen the flavor. This little mug cake is super easy to customize, so don’t be afraid to make it your own!
As someone whose thing has always been cakes (while my sister is firmly on team cookies), I totally get the struggle. I love decorating, layering, and making everything cute, but sometimes I do not want to commit to the full cake process. This little mug cake is my favorite shortcut for those moments when you want a cake now, without the hours of mixing, baking, cooling, and frosting. It’s proof that you can still get that cozy, cake from scratch feeling gin minutes, especially if you’re someone who truly understands just how long a real cake usually takes.
Why I Measure in Grams (and You Might Want To, Too)
If you’ve ever made the same recipe twice and gotten two totally different results, the measuring method is often the reason.
Professional bakeries almost always measure by weight, not volume. Measuring cups leave room for inconsistency—especially with ingredients that pack differently depending on how you scoop or pour them. A scale removes all of that guesswork.
One of the biggest offenders is sugar. Different sugars (and even the same sugar measured by different people) can vary wildly in volume, but 100 grams is always 100 grams. Measuring by weight gives you repeatable, bakery-consistent results and cuts down on extra dishes at the same time.
A food scale is one of the best (and most affordable) investments you can make for your kitchen if you love baking and want your recipes to turn out exactly the same every time.
Ingredients To Prepare
Before baking, take a few minutes to gather the ingredients below and to ensure that it is soft, moist, with the perfect hot cocoa flavor!
Once you have all of the ingredients ready to go, you’re officially set up for Hot Cocoa Mug Cake success. I always recommend measuring everything out ahead of time so the process is smoother, and you can focus on making the best mug cake possible!
Hot Chocolate Mug Cake
Ingredients
- 3 tbsp granulated sugar
- 1 tbsp cocoa powder
- 1 pack hot cocoa mix
- 4 tbsp water
- 1 tbsp egg whites
- 1/4 tsp vanilla extract
- 1 gram baking powder
- 1/4 cup All-Purpose Flour
- 1/4 cup marshmallows
- 1 tbsp chocolate syrup
Method
- In a microwave-safe mug, add the granulated sugar, cocoa powder, all-purpose flour, baking powder, and hot cocoa mix. Stir until fully combined.
- Mix in the egg whites, vanilla extract, and water until the batter is smooth with little to no lumps.
- Microwave the mug cake for 1 minute and 30 seconds. It should rise but not spill over—keep an eye on it just in case.
- Carefully remove the mug from the microwave and sprinkle marshmallows evenly over the top.
- Return the mug to the microwave for 25–30 seconds, just until the marshmallows are soft, fluffy, and slightly melted.
- Drizzle with chocolate syrup and dig in while it’s warm and gooey!
Nutrition
Private Notes
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I love all you recipes and it re sparked my love for baking thank you for the awesome recipes!!!