Coffee Crumb Mug Cake – the ultimate single-serve treat you can make in minutes! . A soft, fluffy, single-serve coffee crumb cake made in the microwave! This mug cake has a rich coffee flavor, a buttery cinnamon streusel topping, and an optional glaze for that true bakery-style finish. Ready in just minutes and perfect with your morning coffee or as a late-night treat. Soft, fluffy, and topped with a buttery cinnamon crumb just like your...
Chefadora AI has the answer - timers, swaps, step-by-step help.
Rub in the cold butter with your fingertips until the mixture resembles coarse crumbs.
Set aside.
In a large microwave-safe mug, whisk together flour, sugar, baking powder, and salt.
Add brewed coffee, milk, oil (or butter), and vanilla extract.
Stir until smooth, but don’t overmix.
Sprinkle all of the prepared streusel evenly over the batter.
Press it down lightly so it sticks.
Microwave on high for 90–100 seconds (depending on microwave strength).
The cake should be set but soft, with the streusel crumbly on top.
Let the cake sit for 2 minutes to finish cooking and firm up.
Mix powdered sugar, milk, and vanilla until smooth.
Drizzle over the crumb topping for that bakery-style finish.
Add a few chopped nuts (walnuts or pecans) for extra crunch.
Swap the coffee for hot chocolate if making for kids.
Stir in mini chocolate chips for a mocha twist.
Can I make this Coffee Crumb Mug Cake without coffee?
Yes! Replace the coffee with hot milk or hot chocolate for a caffeine-free version.
What type of mug should I use?
Use a large microwave-safe mug (at least 12 oz) so the cake has room to rise without spilling over.
Can I bake this in the oven instead of the microwave?
Yes, bake in an oven-safe ramekin at 350°F (175°C) for 12–15 minutes.
How do I know when my mug cake is done?
The top should look set but still soft. If slightly wet in the center, let it rest for 2 minutes—it will finish cooking.
Why did my mug cake turn rubbery?
Overcooking or overmixing can cause a rubbery texture. Start with 90 seconds and check doneness.
How long can I store this mug cake?
It’s best eaten fresh, but you can refrigerate for 1 day and reheat in the microwave for 10–15 seconds.
Can I make this mug cake vegan?
Yes, just use plant-based milk and vegan butter or oil.
I’m Rajani, a passionate cook with over 15 years of experience creating delicious, approachable dishes. My love for food began in childhood, inspired by watching Sanjeev Kapoor’s Khana Khazana with my mom and helping her in the kitchen. On The Gourmet’s Hut, I share tried-and-tested authentic Indian recipes and quick microwave mug cake recipes perfect for busy days. My goal is to make cooking simple, flavorful, and fun—because food brings people together and every meal should create memories.
...
