Double Chocolate Brownie in a Mug Recipe

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The PERFECT brownie mug cake! Double chocolate brownie in a mug is the best mug cake recipe of all time. One bite, and you’ll wonder where this heavenly microwave mug cake has been all your life!

With two kinds of chocolate chips, this no-milk mug cake is ooey, gooey, and so delicious. It’s like a lava cake in a mug! This is the best of the best chocolate mug brownies.

This gooey mug brownie is the cake in a mug of your dreams!

What could be better than an easy mug cake recipe? Only one thing: an easy mug cake that tastes as delicious as this mug cake brownie!

Once I figured out how to make a mug cake perfectly, I felt unstoppable. Chocolate mug cake is delicious and so easy to make. Mix your ingredients in a mug and microwave it for 1 minute – that’s it!

This cake in a mug recipe takes it to a whole new level. It’s a chocolate mug brownie using super common baking ingredients and two kinds of chocolate chips.

Never did I think a microwave mug brownie could taste this amazing, but it does! If you’ve had brownie mug cakes before and weren’t impressed, get ready to change your mind. This brownie in a mug is a real winner!

Brownie Mix in a Mug: Mug Cake Ingredients

• 4 Tbsp. vegetable oil
• 3 Tbsp. cocoa powder
• ¼ tsp. salt
• 6 Tbsp. sugar
• 1 large egg
• 4 Tbsp. flour
• ¼ tsp. baking powder
• 2 Tbsp. white chocolate chips
• 2 Tbsp. milk or semi-sweet chocolate chips
• Optional: Vanilla ice cream and/or whipped cream to serve
• Optional: Powdered sugar to serve

For this mug brownie recipe, you can use either unsweetened cocoa powder or Hershey’s special dark cocoa powder. I have tried both, and both work deliciously!

I use a mix of white chocolate chips and semi-sweet chocolate chips for my mug cake mix. You can use dark chocolate chips in place of semi-sweet if you prefer, for a little more richness.

This double chocolate mug cake is the perfect size for sharing. It’s a great choice for Valentine’s Day! If you want to make a smaller portion, cut all of the ingredients in half (except for the egg) for an individual size chocolate chip mug cake.

How to Make a Brownie in a Mug

1. In a coffee mug or other large mug, mix 4 Tbsp. vegetable oil and 3 Tbsp. cocoa powder until you have a thick, chocolatey liquid.
   
   
   
2. Add in ¼ tsp. salt and 6 Tbsp. sugar and thoroughly mix through until smooth.
   
   
3. Using a fork, thoroughly mix in 1 egg.
   
   
4. Carefully stir in 4 Tbsp. flour and ¼ tsp. baking powder. Thoroughly mix together.
   
   
5. Fold in 2 Tbsp. white chocolate chips and 2 Tbsp. milk or semi-sweet chocolate chips until evenly distributed.
   
   
6. Microwave for 1 minute. The brownie in a mug will rise, then sink a little bit, and should still be wet to the touch.

Let your mug chocolate brownie cool for at least a couple of minutes – it will be very hot coming out of the microwave! I recommend using a large, sturdy mug to make your coffee mug cake.

For an even fudgier brownie cake in a mug, let it cool for about 10 minutes before eating. The melted chocolate chips make this a bit like a chocolate lava mug cake – ooey, gooey, delicious!

Serving Suggestions for Chocolate Brownie in a Mug

Serve your brownie mug with a scoop of vanilla ice cream and/or whipped cream. I love to top my mug brownie cake with a bit of powdered sugar, too. It adds a nice touch!

Another option is to top your brownie in a mug with sliced fresh strawberries. The little bit of tart from the strawberries adds a nice touch to a sweet chocolate mug cake!

Microwave brownies and mug cake recipes just don’t get any better than this gooey chocolate mug cake. I promise you, it’s the best chocolate mug cake recipe you’ll ever try!

Tips for How to Make Brownie in a Mug

• Combine with a fork: Use a fork to combine all your mug cake ingredients. It will mix better this way.
• Add a little flour to the chocolate chips: Mix the chocolate chips together, then sprinkle in a small amount of flour and toss together before adding to the mug. This keeps the chips from sinking to the bottom.
• Cook time based on microwave: Cook time for your microwave brownie recipe depends on the power of your microwave. The cook time here is for an 800W microwave. If you have a 700W microwave, for example, add an extra 40 seconds of cook time.
• Use a big mug: Use a big enough mug for your brownie in a cup! If you use too small of a mug, there’s a chance of the brownie mug mix overflowing. Don’t use a small mug.

Did you try this cake in a mug microwave recipe? I would love to know what you think! Leave a comment and a rating below – it takes just a few seconds but helps other people find and enjoy the recipe!

If you make our mug cake at home, why not share a picture with us? Comment on our Brownie in a Mug 📌 (or even the video pin!) with your homemade brownie in a mug!

Once you know how to make mug cake, it’s an eye-opener. You’ll want to make them all of the time! I know I do!

More of the Easiest Dessert Recipes

• Chocolate Covered Strawberries
• Milk Bar Pie Squares
• How to Make Ganache – Milk & White Chocolate
• Baileys Fudge Recipe (Easy Fudge)
• Easy Instant Pot Cheesecake Recipe

Recipe adapted from Suzy Pelta from Miracle Mug Cakes.