Baubles Chocolate Mug Cake

What if I told you that you could have a rich, warm, holiday-worthy chocolate cake in under 5 minutes… and all you need is a mug and a microwave? Sounds like MAGIC, right?! This Baubles Chocolate Mug Cake is exactly that, super moist, deep chocolate flavor, and topped with cranberry sauce, fresh berries, and a dusting of powdered sugar to make it extra festive.

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It’s basically a Christmas dessert for one (but honestly, I make it even when it’s not the holidays)!

You don’t need eggs, you don’t need a mixer, and you definitely don’t need to share! It’s the easiest, cutest dessert for when you want something cozy and sweet right now… this one might become your NEW winter tradition!

Helpful Tips & Variations

• Use a big mug. Make sure your mug is at least 12 ounces… anything smaller, and you might end up with a microwave volcano (been there)! The cake rises quite a bit before settling.
• Don’t overmix. Stir just until the batter comes together. Overmixing can make your mug cake tough or dense, and nobody wants that.
• Microwaves vary, so watch it. Start with 1 minute on high. If the center still looks wet, microwave in 5-second bursts until it springs back gently when touched. Overcooked mug cake = rubbery regret.
• No cranberry sauce? You can swap in cherry jam, raspberry preserves, or even a drizzle of melted chocolate. Still festive, still delish!
• Dairy-free? Use a plant-based milk and swap the butter for neutral oil (like avocado or sunflower). Easy peasy!
• Add-ins welcome. Try a pinch of cinnamon, a splash of peppermint extract, or orange zest in the batter for holiday flair. Chocolate chips or chopped nuts make it EXTRA cozy too.
• Want to make it a gift? Package the dry ingredients in a little jar or baggie with the instructions. Great for neighbor gifts or classroom treats!

Ingredients

• 4 tbsp (30 g) all-purpose flour
• 2 tbsp (10 g) unsweetened cocoa powder
• 2 tbsp (25 g) granulated sugar
• ¼ tsp (1 g) baking powder
• Pinch of salt
• 3 tbsp (45 ml) milk (dairy or non-dairy)
• 1 tbsp (15 ml) vegetable oil or melted butter
• ½ tsp (2.5 ml) vanilla extract
• 1 tbsp (10–12 g) chocolate chips (optional)

Toppings (optional but highly recommended):

• 2–3 tsp (10–15 g) cranberry sauce or cherry jam
• Fresh cranberries, for garnish
• Powdered sugar, for dusting
• Small mint sprig, for a festive touch

How to Make Baubles Chocolate Mug Cake

1. Grab a big mug and mix the dry stuff

Start with a large mug (at least 12 oz) so your cake has room to rise without bubbling over! You definitely don’t want cake batter exploding in your microwave (been there, not fun)…

Add your flour, cocoa powder, sugar, baking powder, and just a little pinch of salt right into the mug. Give it a good stir with a fork or mini whisk until everything looks evenly combined.

2. Stir in the wet ingredients

Now add the milk, oil (or melted butter), and vanilla extract. Stir it all together until the batter looks smooth and chocolatey. It might seem thick, but that’s exactly what you want! If you’re using chocolate chips (which I HIGHLY recommend), fold them in now.

Don’t overmix here… just stir until everything’s combined. Overdoing it can make the cake a little tough, and this one should be soft and fluffy.

3. Microwave it carefully

Place your mug in the microwave (center it if you can) and heat on high for about 1 minute to 1 minute 15 seconds. The cake should puff up nicely and look set on top. It’s okay if the middle looks slightly shiny, just give it a gentle TAP, and if it springs back, you’re golden!

If it still looks wet, microwave in 5-second bursts, checking as you go. You don’t want to overcook it, mug cakes dry out fast…

4. Give it a moment

Let the cake sit for about 30 seconds to 1 minute before topping it. That quick pause helps it finish setting up, and also makes sure the cranberry sauce doesn’t just melt right into the top.

And honestly? It smells SO good at this point, it’s kind of hard to wait. But just trust me, it’s worth it!

5. Add your festive toppings

Spoon a little cranberry sauce over the top and let it drip naturally down the sides, it’s supposed to look dramatic and holiday-ish. Then toss on a few fresh cranberries, dust with powdered sugar, and tuck in a little sprig of mint if you’re feeling fancy.

No cranberry sauce? You can totally use cherry jam or raspberry preserves! Even a drizzle of melted chocolate works if that’s what you’ve got on hand.

6. Eat it warm and enjoy the moment

That’s it, GRAB a spoon and dig in while it’s still warm and gooey inside. The texture should be soft and cake-like, with little melty chocolate pockets and that bright, tangy topping to balance everything out.

Honestly? It’s the kind of dessert that feels way fancier than it actually is… and you don’t even have to share!

Can I bake this in the oven?

Technically, yes… but it’s really NOT ideal! This recipe is designed for the microwave and cooks in under 90 seconds. If you try baking it in the oven, the texture just doesn’t turn out the same, it can get dry around the edges before the center sets…

Can I make this gluten-free?

Yes! Just swap the all-purpose flour with your favorite 1:1 gluten-free flour blend. Mug cakes are pretty forgiving, and this one turns out great with gluten-free flour. The texture may be slightly softer, but still chocolatey and delicious!

I hope you LOVE this festive little chocolate mug cake! It’s what I reach for when I’m craving something sweet after dinner but don’t feel like pulling out a mixing bowl!

Baubles Chocolate Mug Cake

This festive chocolate mug cake is soft, rich, and microwave-ready in just minutes! It’s topped with cranberry sauce, powdered sugar, and fresh berries for a cozy single-serve holiday dessert that looks as good as it tastes.

Print Recipe

PREP: 3 minutes mins

COOK: 1 minute min

TOTAL: 4 minutes mins

Servings: 1

Course: Dessert

Cuisine: American

Ingredients

  

For the mug cake:

• 4 tbsp all-purpose flour
• 2 tbsp unsweetened cocoa powder
• 2 tbsp granulated sugar
• ¼ tsp baking powder
• Pinch of salt
• 3 tbsp milk dairy or non-dairy
• 1 tbsp vegetable oil or melted butter
• ½ tsp vanilla extract
• 1 tbsp chocolate chips optional

Toppings:

• 2 –3 tsp cranberry sauce or cherry jam
• Fresh cranberries optional
• Powdered sugar for dusting
• Fresh mint for garnish (optional)

Instructions

 

Add dry ingredients:

1. In a large microwave-safe mug (12 oz or larger), stir together the flour, cocoa powder, sugar, baking powder, and a pinch of salt until well combined.

Stir in wet ingredients:

1. Add the milk, oil (or butter), and vanilla extract. Stir until the batter is smooth and no dry bits remain. Fold in chocolate chips if using.

Microwave the cake:

1. Microwave on high for 1 min to 1 min 15 secs. The cake should rise and look set on top. If the center still looks wet, microwave in 5-sec bursts until it springs back when touched.

Let it sit:

1. Let the cake rest for 30–60 secs before topping, this helps it finish setting and keeps the cranberry sauce from melting too quickly.

Add toppings and serve:

1. Spoon the cranberry sauce on top, add a few fresh cranberries, dust with powdered sugar, and garnish with mint if using. Enjoy warm!

Notes

• Use a 12 oz MUG or larger to prevent overflow.
• Every microwave is different, start with 1 min and check before adding more time.
• You can substitute the cranberry sauce with cherry jam, raspberry preserves, or chocolate sauce.
• For a dairy-free version, use non-dairy milk and oil instead of butter.

Did you make this? Leave a rating below!

If you give it a try, let me know how it turns out! A quick COMMENT or star rating below helps more than you know and I always love hearing what you think! And if you’re into simple, feel-good desserts like this one, be sure to follow Panfetti on Pinterest for more recipes that bring the cozy, one mug at a time!