This single-serving brownie cooks in 90 seconds because microwaves heat water molecules at 2.45 billion cycles per second.
Mug Brownie
Satisfy your chocolate cravings in a flash with this delightful Mug Brownie! In just under five minutes, you can whip up a fudgy treat using simple pantry staples like cocoa powder and a splash of vanilla. Grab your favorite mug and indulge in a warm, gooey dessert that’s perfect for any sweet tooth!
Prep
3
min
Cook
2
min
Serves
1
people
Level
beginner
The Story
This microwave madness traces back to 1980s American college dorms where broke students discovered that nuking cake batter in coffee mugs produced edible results in 90 seconds—then Belgian chocolate giant Milka crashed the party with their Biscoff collaboration, turning desperate midnight snacking into a proper Euro-American dessert hybrid that would make both Julia Child and your microwave manufacturer weep.
Regional Twist
In Bavaria's Munich district, they substitute the sunflower oil with melted Alpine butter and swap regular cocoa powder for Felchlin Swiss cocoa, creating a richer brownie that pairs with their local Augustiner beer.
📝 Ingredients
Shopping List
- 1 tablespoon (15 ml) chocolate chips
- 1 unit egg
- 3 tablespoons (44 ml) milk
- 1 piece milka biscoff chocolate
Pantry Items
Amounts also listed in instructions below
- baking powder (to taste)
- cocoa powder (to taste)
- 4 tablespoons (32 g) flour
- salt (to taste)
- 4 tablespoons (50 g) sugar
- sunflower oil (to taste)
👨🍳 Instructions
- 1
Choose your favorite mug.
- 2
Mix all the dry ingredients.
- 3
Add the egg, milk, and oil, and mix well.
- 4
If desired, add chocolate chips.
- 5
Place a piece of Milka Biscoff chocolate in the center.
- 6
Cook in the microwave for 1 minute and 30 seconds at maximum power.
💡 Pro Tips
- ✓Microwave at 70% power for 2-2.5 minutes instead of full power for 1.5 minutes to prevent overcooking the edges while the center remains gooey, as microwaves heat unevenly at full power.technique70% power, 2-2.5 minutes
- ✓Use a ceramic mug that's at least 12 oz capacity because the batter will expand 40-50% during cooking due to steam and leavening agents.equipment12 oz minimum capacity
- ✓Add 1-2 teaspoons of water to the batter if using natural cocoa powder, as it needs extra moisture to bloom properly and prevent a chalky texture in the short microwave cooking time.ingredient1-2 teaspoons water
- ✓Let the brownie rest for 2-3 minutes after microwaving because the residual heat will continue cooking the center while the surface cools to an edible temperature.timing2-3 minutes rest
- ✓Spray the mug with cooking spray or brush with oil before adding batter, as the high sugar content will caramelize and stick to ungreased surfaces during the intense microwave heat.technique
Share this recipe
Prep
3
min
Cook
2
min
Serves
1
people
Level
beginner
Share this recipe
This single-serving brownie cooks in 90 seconds because microwaves heat water molecules at 2.45 billion cycles per second.
Mug Brownie
Satisfy your chocolate cravings in a flash with this delightful Mug Brownie! In just under five minutes, you can whip up a fudgy treat using simple pantry staples like cocoa powder and a splash of vanilla. Grab your favorite mug and indulge in a warm, gooey dessert that’s perfect for any sweet tooth!
The Story
This microwave madness traces back to 1980s American college dorms where broke students discovered that nuking cake batter in coffee mugs produced edible results in 90 seconds—then Belgian chocolate giant Milka crashed the party with their Biscoff collaboration, turning desperate midnight snacking into a proper Euro-American dessert hybrid that would make both Julia Child and your microwave manufacturer weep.
Regional Twist
In Bavaria's Munich district, they substitute the sunflower oil with melted Alpine butter and swap regular cocoa powder for Felchlin Swiss cocoa, creating a richer brownie that pairs with their local Augustiner beer.
📝 Ingredients
Shopping List
- 1 tablespoon (15 ml) chocolate chips
- 1 unit egg
- 3 tablespoons (44 ml) milk
- 1 piece milka biscoff chocolate
Pantry Items
Amounts also listed in instructions below
- baking powder (to taste)
- cocoa powder (to taste)
- 4 tablespoons (32 g) flour
- salt (to taste)
- 4 tablespoons (50 g) sugar
- sunflower oil (to taste)
👨🍳 Instructions
- 1
Choose your favorite mug.
- 2
Mix all the dry ingredients.
- 3
Add the egg, milk, and oil, and mix well.
- 4
If desired, add chocolate chips.
- 5
Place a piece of Milka Biscoff chocolate in the center.
- 6
Cook in the microwave for 1 minute and 30 seconds at maximum power.
💡 Pro Tips
- ✓Microwave at 70% power for 2-2.5 minutes instead of full power for 1.5 minutes to prevent overcooking the edges while the center remains gooey, as microwaves heat unevenly at full power.technique70% power, 2-2.5 minutes
- ✓Use a ceramic mug that's at least 12 oz capacity because the batter will expand 40-50% during cooking due to steam and leavening agents.equipment12 oz minimum capacity
- ✓Add 1-2 teaspoons of water to the batter if using natural cocoa powder, as it needs extra moisture to bloom properly and prevent a chalky texture in the short microwave cooking time.ingredient1-2 teaspoons water
- ✓Let the brownie rest for 2-3 minutes after microwaving because the residual heat will continue cooking the center while the surface cools to an edible temperature.timing2-3 minutes rest
- ✓Spray the mug with cooking spray or brush with oil before adding batter, as the high sugar content will caramelize and stick to ungreased surfaces during the intense microwave heat.technique