Coffee Chocolate Mug Cake
If you’re craving a warm, gooey dessert with bold coffee flavor and a rich chocolate finish, this Coffee Chocolate Mug Cake is your new favorite treat.
It comes together in just minutes using simple ingredients and a microwave. This version mixes freshly brewed coffee and cocoa powder directly into the batter, infusing every bite with a deep mocha taste.
Plus, a touch of chocolate chips melts into gooey perfection, making it feel like a decadent café-style dessert.
You’ll mash the banana, mix in the dry ingredients, stir in the coffee and chocolate chips, and microwave for just over a minute to get the perfect soft and fluffy texture.
Prep & Cook Info
| Prep Time | Cook Time | Total Time | Course | Cuisine | Servings |
|---|---|---|---|---|---|
| 5 mins | 1 min 30 secs | 6 mins 30 secs | Dessert | American | 1 |
Ingredients
| Ingredient | 1 Serving | 2 Servings | Alternatives / Notes |
|---|---|---|---|
| All-purpose flour | 4 tbsp | 8 tbsp | Use oat flour or almond flour for gluten-free |
| Unsweetened cocoa powder | 1 tbsp | 2 tbsp | Dutch-processed or regular |
| Baking powder | ¼ tsp | ½ tsp | Don’t skip—provides lift |
| Instant coffee or espresso powder | 1 tsp | 2 tsp | Can use 2 tbsp strong brewed coffee |
| Milk (any kind) | 3 tbsp | 6 tbsp | Almond, soy, dairy all work |
| Vegetable oil | 1 tbsp | 2 tbsp | Use melted butter or applesauce |
| Vanilla extract | ⅛ tsp | ¼ tsp | Optional for flavor depth |
| Chocolate chips | 1 tbsp | 2 tbsp | Use chunks or omit if desired |
| Sugar | 1 tbsp | 2 tbsp | Stevia or maple syrup as alternatives |
Tools You’ll Need
| Tool/Equipment | Description | Alternatives |
|---|---|---|
| Microwave-safe Mug | Used to mix and cook the cake | Microwave-safe bowl |
| Tablespoon & Teaspoon | For accurate measurement | Kitchen scale or standard cutlery |
| Fork or Small Whisk | For mixing the batter | Mini spatula |
| Microwave | Used for cooking | Air fryer (adjust time & temp) |
How to Make Coffee Chocolate Mug Cake
Before diving into each step, make sure you gather all ingredients in front of you and use a standard microwave-safe mug for even cooking.
The steps below walk you through the entire process.
Step 1: Mix Dry Ingredients
In your mug, add 4 tbsp all-purpose flour, 1 tbsp cocoa powder, 1 tsp instant coffee or espresso powder, ¼ tsp baking powder, and 1 tbsp sugar.
Stir well with a fork or whisk until everything is evenly combined.
Step 2: Add Wet Ingredients
Pour in 3 tbsp milk, 1 tbsp oil, and ⅛ tsp vanilla extract. Mix again until a smooth batter forms with no dry spots.
Step 3: Fold in Chocolate Chips
Stir in 1 tbsp chocolate chips, making sure they are spread evenly. You can also sprinkle a few on top for extra gooeyness.
Step 4: Microwave
Microwave the mug cake for 1 minute 30 seconds. Check the top—it should look puffed and set. If needed, cook in 10-second bursts until done.
Serving and Decoration Tips
Serve the cake while it’s warm for the best gooey texture. Add a scoop of vanilla ice cream or a dollop of whipped cream on top to elevate the dessert.
Dust with extra cocoa powder or drizzle with chocolate syrup or espresso glaze for a café-style finish. Garnish with chocolate shavings or coffee beans for an elegant look.
Variation to Try
Mocha Lava Cake Variation:
- Add ½ square of dark chocolate or 1 extra tsp chocolate chips into the center of the batter before microwaving.
- This creates a molten chocolate core when cooked.
Caramel Latte Mug Cake:
- Replace 1 tsp instant coffee with 1 tbsp brewed caramel-flavored coffee.
- Swirl 1 tsp caramel sauce on top before cooking.
Protein Mocha Mug Cake:
- Replace 2 tbsp flour with 1 scoop chocolate protein powder.
- Increase milk to 4 tbsp for moisture balance.
Each variation builds on the base recipe and adds flavor complexity. Adjust microwave time slightly as needed.
Storage Tips
If you’re making more than one serving or planning ahead:
- Short-term: Cover and refrigerate for up to 24 hours. Reheat in microwave for 10–15 seconds.
- Meal Prep Tip: Mix dry ingredients in advance and store in a small jar. Add wet ingredients when ready to cook.
- Avoid Freezing as texture may become rubbery after defrosting.
Common Mistakes & Fixes
| Mistake | Problem | Solution |
|---|---|---|
| Too much coffee | Overly bitter flavor | Stick to recommended amount |
| Overcooking | Dry, spongy cake | Start with 90 sec and adjust |
| No baking powder | Dense, flat texture | Essential for rise and fluffiness |
| Incorrect mug size | Overflow or uneven cook | Use 12–14 oz capacity mug |
This Coffee Chocolate Mug Cake is the perfect solution for those cozy nights when you want something warm, chocolatey, and quick.
The combination of coffee and cocoa is indulgent yet energizing, and it’s ready in just minutes.
Try it out and let us know in the comments how your mug cake turned out. Don’t forget to share your photos and variations too!
