Fudgy Microwave Mug Brownies Recipe

Fudgy Microwave Mug Brownies Recipe

 The Spruce 

Prep: 5 mins
Cook: 2 mins
Total: 7 mins
Serving: 1 serving
Yield: 1 mug brownie
Nutrition Facts (per serving)
675 Calories
35g Fat
89g Carbs
6g Protein
Show Full Nutrition Label Hide Full Nutrition Label
Nutrition Facts
Servings: 1
Amount per serving
Calories 675
% Daily Value*
Total Fat 35g 45%
Saturated Fat 6g 30%
Cholesterol 0mg 0%
Sodium 171mg 7%
Total Carbohydrate 89g 32%
Dietary Fiber 4g 15%
Total Sugars 56g
Protein 6g
Vitamin C 0mg 0%
Calcium 50mg 4%
Iron 6mg 34%
Potassium 189mg 4%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

I don't know why I ever rolled my eyes (figuratively) at the idea of microwave mug brownies. I even claim in my bio that I'm no food snob, and yet my first reaction to mug brownies was "well, bless its little heart." 

I've since come around. As anyone knows, brownies are wonderful no matter their shape or receptacle. Furthermore, any cooking technique that saves time is one worth considering. 

Mug brownies are also a real boon to anyone who, like myself, lacks restraint. Since it's a single serving, you need not fear waking up some morning and realizing that you ate a whole 9-inch pan of brownies by yourself the night before.

Finally, mug brownies are, by definition, prepared and served in a mug, and anything served in a mug is warming and soothing to the spirit. If you've ever enjoyed a cup of hot chocolate after being out in the snow, you know what I'm talking about. Mug brownies are merely the next step in the evolution of hot chocolate.

Maybe someday all food will be prepared and served in mugs. What about mug mac and cheese? Or mug pizza? I'm sure someone is working on those as we speak.

Gather Your Tools

For now, however, let's confine ourselves to mug brownies.

Now, just because we're doing away with the pan doesn't mean we are going to discard all culinary conventions along with it. Which means, we will NOT be mixing the ingredients directly in the mug. We are not savages. Have you ever tried to fit a wooden spoon or whisk into a mug? It can't be done. They might not teach mug brownies in culinary school, but of that I am certain.

Also, it's just too messy. You'll be rattling a fork around in your mug, and cocoa powder will be flying everywhere. 

No, friends, we're going to mix up the batter in a handy bowl and then pour it into the mug. If you have a mixing bowl with a spout, you'll be sitting pretty. A silicone spatula or scraper will ensure every last drop of batter makes it into the mug.

And I know, doing it my way means you're going to have a bowl to wash out. Sorry! It can't be helped. To make up for it, you can pour your milk directly into your box of cereal at breakfast tomorrow.

A note here about leavening agents. Brownie recipes range from fudgy to cakey. Cakey brownies are made with baking powder, so they have a bit of rise. Fudgy ones are dense and gooey. We're making the fudgy kind, so no baking powder needed.

And no egg, either. Egg is great in brownies, but one egg is too much for a mug brownie. You'd end up with basically a chocolate frittata.


  • 2 tablespoons (1 ounce) vegetable oil

  • 2 tablespoons (1 ounce) brewed coffee

  • 1 dash pure vanilla extract

  • 1/4 cup dark brown sugar, packed

  • 2 tablespoons (11 grams) unsweetened cocoa powder

  • 1/4 cup (33 grams) all-purpose flour

  • 1 dash salt

  • 2 tablespoons chocolate chips

Steps to Make It

  1. Gather the ingredients. 

    Fudgy Microwave Mug Brownies Recipe ingredients
     The Spruce
  2. In a mixing bowl with a spout, whisk the oil, coffee, and vanilla, until combined. 

    Fudgy Microwave Mug Brownies Recipe
     The Spruce
  3. Do the same with the sugar, cocoa, and finally, the flour, one at a time, whisking until fully incorporated. Stir in the salt.

    Fudgy Microwave Mug Brownies Recipe
     The Spruce
  4. Finally, stir in the chocolate chips.

    Fudgy Microwave Mug Brownies Recipe
     The Spruce
  5. Pour the batter into a standard 12-ounce mug.

    Fudgy Microwave Mug Brownies Recipe
     The Spruce
  6. Microwave on high for 1 to 2 minutes, depending on the wattage of your microwave.

    Fudgy Microwave Mug Brownies Recipe
     The Spruce
  7. Let cool slightly before enjoying.

    Fudgy Microwave Mug Brownies Recipe
     The Spruce