Brownie in a Mug


When the craving for a chocolate dessert hits, this brownie in a cup is just a microwave away. The batter is made right in your coffee cup and bakes to perfection in less than 3 minutes. This brownie recipe is endlessly adaptable. Make a few with your kids for a fun weekday dessert or for yourself after they go to bed (you deserve it). The best part? No one has to share!

What size mug do you use for brownies in a cup?

A mug that’s too small is likely to overflow and a mug that’s too large can affect the rise and bake time of the brownie. A 12-ounce microwave-safe mug is perfect for this recipe, with just enough room for the batter to rise. To see if your cup is the right size, measure out 1 1/2 cups of water and pour it into the cup. The water should come to the rim.

Why is espresso good with chocolate?

Coffee makes any chocolate dessert even more chocolatey (the coffee taste will not be noticeable). The granules in the instant espresso will dissolve into the liquid as you mix the brownie batter – there is no need to brew it first.

What else can you add to a brownie in a cup?

Make it a nut brownie in a cup by mixing 3 tablespoons of chopped toasted walnuts or pecans with the sprinkles and sprinkling on top. Add a fruit swirl by gently stirring 2 tablespoons of your favorite jam into the batter with a fork before microwaving. Let this brownie cool for 5-6 minutes before eating, as the jam will heat up!

YIELDS: 1 serving(s)

PREP TIME: 5 mins

TOTAL TIME: 7 mins


  • 4 tbsp. unsweetened cocoa powder 
  • 4 tbsp. all-purpose flour
  • 6 tbsp. light brown sugar
  • 1/2 tsp. instant espresso granules, optional
  • 1/8 tsp. kosher salt 
  • 5 tbsp. whole milk
  • 5 tbsp. butter, melted
  • 1/4 tsp. vanilla extract
  • 4 tbsp. semisweet chocolate chips
  • Vanilla ice cream, for serving


  1. 1Into a 12-ounce microwave-safe mug, add the cocoa powder, flour, sugar, espresso granules (if using), and salt. Stir with a fork. Add the milk, butter, and vanilla, and stir with a fork until smooth. Stir in 3 tablespoons of the chocolate chips. Use a damp paper towel to wipe excess batter off the sides of the mug.
  2. 2Microwave for 2 minutes 45 seconds on high, then sprinkle remaining 1 tablespoon chocolate chips on top. Let the brownie stand for 2 minutes before eating. Serve warm with vanilla ice cream.