Simple Brownie In A Mug

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Rich, fudgy, and ready in minutes, this Simple Brownie In A Mug is the ultimate dessert fix for those spontaneous chocolate cravings. Made right in your favorite coffee mug, it delivers warm, gooey satisfaction with barely any effort. Whether you’re curled up on the couch or need a quick sweet bite between Zoom meetings, this single-serve brownie will never let you down.

No oven? No problem. This mug brownie bakes in the microwave in under 2 minutes, creating a soft center with melty chocolate chips throughout. It’s perfect for portion control (or doubling if you’re sharing) and keeps your kitchen mess to a minimum. With a handful of pantry staples, your brownie dreams are just a stir and zap away.

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Why You’ll Love This Simple Brownie In A Mug

• Instant Gratification: Ready in just about 5 minutes from start to finish.
• Minimal Clean-Up: Only one mug and spoon needed—no bowls, mixers, or pans.
• Decadent Flavor: Deep cocoa richness with a gooey chocolate center.
• Customizable: Add-ins like chopped nuts, caramel drizzle, or a scoop of ice cream take it over the top.
• Perfect for One (or Two!): A cozy portion without the temptation of a whole tray.

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Preparation Phase & Tools to Use

This quick treat doesn’t require fancy equipment, but a few basics are key for the perfect mug brownie:

• Microwave-Safe Mug (12 oz+): Ensures the batter has room to rise without overflowing. Use a ceramic mug with thick walls for even cooking.
• Measuring Spoons: Precision matters when baking in small quantities. Eyeballing can throw off texture.
• Fork or Small Whisk: Helps evenly blend wet and dry ingredients without overmixing.
• Microwave (1000W preferred): Cooks the brownie fast and evenly. Adjust time slightly for different wattages.

Optional but fun:

• Rubber Spatula: To scrape down the sides and get every bit of batter.
• Ice Cream Scoop: For that final scoop of vanilla on top when serving.

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Ingredients for the Simple Brownie In A Mug

• All-Purpose Flour: Adds structure and balance to the brownie base.
• Unsweetened Cocoa Powder: The hero of chocolate intensity; use high-quality for best results.
• Granulated Sugar: Sweetens the brownie and helps achieve a soft, tender texture.
• Vegetable Oil: Keeps the brownie moist without butter; neutral in flavor.
• Milk: Provides necessary moisture to blend all ingredients.
• Vanilla Extract: Enhances the chocolate flavor and adds warmth.
• Salt: Just a pinch makes the chocolate flavor pop.
• Chocolate Chips: Melty pockets of chocolate goodness—optional, but highly recommended.

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How To Make the Simple Brownie In A Mug

Step 1: Mix the Dry Ingredients

Add 1/4 cup all-purpose flour, 2 tbsp unsweetened cocoa powder, 2 tbsp sugar, and a pinch of salt directly into a microwave-safe mug. Stir well to combine.

Step 2: Blend the Wet Ingredients

Pour in 2 tbsp vegetable oil, 3 tbsp milk, and 1/4 tsp vanilla extract. Use a fork or small whisk to mix everything together until smooth and lump-free.

Step 3: Fold in the Chocolate Chips

Add 1 to 2 tablespoons of chocolate chips and gently stir them into the batter. Push a few chips into the center for a molten core effect.

Step 4: Microwave to Perfection

Microwave the mug on high for 60 to 90 seconds. Check at the 60-second mark—the top should look set but slightly soft in the center. Don’t overcook!

Step 5: Cool & Serve

Let the brownie rest for a minute before diving in. Top with a scoop of vanilla ice cream, whipped cream, or enjoy it as-is.

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How to Serve and Store Your Mug Brownie

Serve your brownie while it’s warm for the best gooey experience. Add a scoop of vanilla ice cream, a drizzle of chocolate syrup, or a dollop of whipped cream for an indulgent twist. Crushed nuts or a sprinkle of flaky salt can also elevate the flavor.

Since this recipe is designed for single-serve enjoyment, storing isn’t usually necessary. However, if you do want to prep it ahead:

• Mix the dry ingredients in the mug and cover.
• When ready, stir in the wet ingredients and microwave.
• Once cooked, leftovers (if any!) can be covered and stored at room temp for up to 12 hours.

Reheat briefly in the microwave for 10–15 seconds before eating.

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Frequently Asked Questions

Can I make this brownie without cocoa powder?

Cocoa powder is essential for the chocolatey flavor. Without it, you won’t get that classic brownie taste. Consider using melted chocolate as a partial substitute, but results may vary.

Can I use almond or oat milk instead of regular milk?

Yes! This recipe works well with most non-dairy milk alternatives, including almond, oat, and soy.

What if I don’t have chocolate chips?

You can skip them, but you’ll miss the gooey center. A chopped chocolate bar or a spoonful of Nutella in the center can work too.

Can I bake this in the oven instead of the microwave?

You can, but it’s not ideal for this single-serve size. If needed, bake at 350°F (175°C) in an oven-safe ramekin for about 10–12 minutes.

How do I know when it’s done cooking?

The top should look set and slightly springy. The center may still look a little soft—that’s what keeps it gooey. Avoid overcooking or it’ll turn dry.

Can I double the recipe?

Absolutely. Use a larger mug or microwave-safe bowl to avoid overflow, and increase the cooking time slightly (start checking around 90 seconds).

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Want More Chocolate Dessert Ideas?

If you love this simple brownie in a mug, you’ll probably want to try these other chocolatey favorites:

• Quick and Easy Fudgy Chocolate Brownie Cookies for a crispy-edged, gooey-centered cookie.
• Chocolate Caramel Toffee Crunch Cake for a richer, layered experience.
• Brownie Refrigerator Cake if you love chilled, creamy chocolate treats.
• Peanut Butter Chocolate Chip Cookie Cups for a bite-sized dessert with a gooey center.
• Reese’s Peanut Butter Banana Bread for a chocolate-peanut butter mashup.

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Save This Pin For Later

📌 Save this recipe to your Pinterest dessert board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you add a gooey center? Top it with peanut butter or sea salt? I’d love to hear your creative takes.

Looking for even more quick dessert inspiration? Check out my daily recipes and dessert pins over on Pinterest at Kitchen By Kate.

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