Brownie in a Mug

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Photography Credit: Elise Bauer

Oh my. We’re doomed. My young friends Reilly and Alden just showed me how they make single serving brownies, in a mug, in a microwave. Takes 5 minutes.

We did experiment a bit. Turns out that you really should not use extra virgin olive oil for this recipe, it’s too strongly flavored. Corn oil or canola oil work best.

A pinch of salt helps make the chocolate more chocolate-y. I’ve added some vanilla and a tiny bit of cinnamon; you could also add a speck of instant coffee to take it up a notch.

Mug Brownie

The brownie lacks for structure (no egg) but that’s okay because it’s contained by the mug. When it’s done, it’s HOT. Perfect for topping with a little vanilla ice cream or whipping cream.

The trick is getting the cooking time right for your microwave. Every microwave oven model is different.

Our 1000 watt microwave cooked these brownies in a mug perfectly at a minute 40 seconds. If you have a stronger microwave it will likely take less time. Enjoy!

 

Brownie in a Mug Recipe

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  • Prep time: 3 minutes
  • Cook time: 2 minutes
  • Yield: Makes one serving

Some mugs don't microwave well because there is metal in their ceramic glaze. They'll work but they may get very hot. Best to use a plain old everyday un-fancy mug.

Ingredients

  • 1/4 cup flour (30 g)
  • 1/4 cup sugar (50 g)
  • 2 Tbsp (13 g) cocoa (natural, unsweetened)
  • Pinch of salt
  • Tiny pinch of cinnamon
  • 1/4 cup water (60 ml)
  • 2 Tbsp canola oil or vegetable oil (NOT extra virgin olive oil, it's too strongly flavored)
  • 1 to 2 drops vanilla extract
  • 1 small scoop of ice cream or 1 or 2 teaspoons heavy whipping cream to serve

Method

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1 Place flour, sugar, cocoa, salt, and cinnamon in a microwave safe ceramic mug. Stir with a fork or spoon to mix well and break up any clumps.

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2 Add the oil, water, and vanilla to the cup and stir until the mixture is smooth and there are no lumps.

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3 Place in microwave and heat on high until the mixture is cooked through, about a 1 minute and 40 seconds for a 1000 watt microwave. You may have to experiment and adjust the time for less or more powerful microwaves. If you don't know the power level on your microwave, start with 60 seconds and increase until the brownie is done. It should still be moist when cooked through, not dry.

4 Let cool for a minute and serve with a scoop of vanilla ice cream or a teaspoon or two of whipping cream poured over.

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Piper and Alden eating mug brownies

Showing 4 of 337 Comments

  • Michelle

    I made this mug cake as written before and loved it! I had a craving for it tonight so I mixed it up… then realized my microwave was broke. I added 1/4 tsp of baking powder and filled three cupcake liners with the batter. Baked it at 350F for 14 minutes and they were so good!! I also subbed coconut oil as someone else had suggested. I would make them in the oven again if ever in a pinch!

  • Millon

    It tasted decent and I would make it again. However, I must have did something wrong because it didn’t taste like a brownie.

  • Nicole

    I just made this in my giant mug. Followed the recipe verbatim and it was so good! Like lava cake. I cooked mine for 1 min 30 seconds. So moist!

  • Good-Cook

    I followed the instructions word-by-word and this exploded in my microwave. Just be careful that you don’t blow up your microwave……….. No, never using this recipe again. Sorry

  • Sean Erwin

    I made it as instructed but added a big spoonful of peanut butter and cooked it for 1 minute and 40 seconds and it’s amazing!!! It’s still fluffy and moist with a molten peanut butter middle so good

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