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Brownies in a mug

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Prep Time 2 minutes
Cook Time 1 minute
Total Time 3 minutes
Difficulty Level Extremely Easy / Beginner-Friendly
Heat / Cooking Intensity High Microwave Power ($1000\text{W}$ standard baseline)
Yield 1 individual serving (12 oz microwave-safe mug)

Essential Ingredients

To achieve that rich bakery flavor in a tiny container, quality matters. Measure accurately using standard measuring spoons for best results.

  • Unsalted Butter: 2 tablespoons ($28\text{g}$). Provides rich flavor and keeps the brownie moist. Coconut oil or neutral vegetable oil can be substituted.

  • Granulated Sugar: 2 tablespoons. Provides sweet balance and helps form the crackly top.

  • Brown Sugar (Packed): 1 tablespoon. Adds deep caramel notes and crucial moisture for a chewy center.

  • Unsweetened Cocoa Powder: 2 tablespoons. Use high-quality Dutch-processed cocoa for an extra dark, rich chocolate profile.

  • All-Purpose Flour: 3 tablespoons. Spoon and level your flour so the brownie doesn’t become cakey.

  • Milk: 2 tablespoons. Whole milk preferred, though oat or almond milk work great too.

  • Pinch of Salt: $1/8$ teaspoon. Essential for enhancing the deep cocoa flavors.

  • Vanilla Extract: $1/4$ teaspoon.

  • Semi-Sweet Chocolate Chips: 1 to 2 tablespoons. Folded into the center to create a molten melted core.

Step-by-Step Cooking Guide

1.Melt the Butter Base:Duration: 30 secs | Microwave Intensity: High (100%).

In a 12 oz microwave-safe mug, add the 2 tablespoons of unsalted butter. Microwave on High for 20 to 30 seconds until completely melted.

2.Whisk Dry and Wet Ingredients:Duration: 45 secs | Heat Intensity: None.

Add the granulated sugar, brown sugar, cocoa powder, milk, vanilla extract, and salt directly into the mug with the melted butter. Whisk vigorously with a small fork until smooth and fully emulsified.

3.Fold Flour and Chocolate Chips:Duration: 30 secs | Heat Intensity: None.

Add the 3 tablespoons of all-purpose flour. Stir gently with your fork just until the flour disappears—overmixing creates gluten, making the brownie tough. Gently drop the chocolate chips into the center of the batter; let them sink slightly.

4.Microwave to Fudgy Perfection:Duration: 60 secs | Microwave Intensity: High (100%).

Place the mug on the edge of the microwave turntable (this helps it cook more evenly). Microwave on High ($1000\text{W}$) for 50 to 60 seconds. The center should still look slightly glossy and moist when done.

5.Cool and Top:Duration: 2 mins | Heat Intensity: None.

Allow the mug brownie to rest for 2 full minutes. The brownie continues cooking internally as it sits. Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream!

Pro Tips for Mug Cake Success

  • Know Your Wattage: Microwave power varies widely. A $1200\text{W}$ microwave may only need 45 seconds, whereas an $800\text{W}$ unit may need 70 seconds. Stop cooking as soon as the edges look set and the center is slightly damp.

  • Use the Right Size Mug: Always use at least a 12 oz microwave-safe ceramic mug. The batter rises significantly while heating before settling back down.

  • Do Not Overcook: Overcooked microwave desserts turn rubbery in seconds as water evaporates rapidly. Err on the side of undercooking!

Storage & Shelf Life

  • Best Enjoyed Fresh: Microwave mug treats are designed to be eaten immediately within 10 to 15 minutes of cooking.

  • Storage: If you can’t finish it, cover the mug tightly with plastic wrap and store at room temperature for up to 24 hours.

  • Reheating: Sprinkle a few drops of water on top and microwave on Medium power for 10 seconds to restore moisture.

Detailed Nutritional Breakdown

Calculated per single serving mug brownie (without additional topping choices).

Nutrient Amount Per Serving % Daily Value*
Calories 410 kcal —
Total Fat 22 g 28%
Saturated Fat 13 g 65%
Trans Fat 0.5 g —
Cholesterol 45 mg 15%
Sodium 210 mg 9%
Total Carbohydrate 52 g 19%
Dietary Fiber 4 g 14%
Total Sugars 34 g —
Protein 5 g 10%
Calcium 60 mg 5%
Iron 2.8 mg 15%
Potassium 220 mg 4%

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