Description

Satisfy your chocolate cravings in minutes with this easy sugar-free microwave brownie in a mug! Made with unsweetened cocoa powder, a granulated sugar-free sweetener, and sugar-free chocolate chips, this single-serving dessert delivers rich chocolate flavor and a soft, fudgy texture without added sugar. Ready in just over a minute of microwave cooking, it’s perfect for a quick afternoon treat or a late-night chocolate fix. No oven, no mixing bowls, and minimal cleanup required!

Ingredients

Scale

3 tablespoons all-purpose flour
2 tablespoons granulated sugar-free sweetener (allulose or monk fruit blend)
1 1/2 tablespoons unsweetened cocoa powder
1/8 teaspoon baking powder
1 pinch salt
2 tablespoons unsalted butter, melted, or vegetable oil
2 tablespoons milk (dairy or unsweetened almond milk)
1/4 teaspoon pure vanilla extract
1 tablespoon sugar-free chocolate chips (optional)

Instructions

Mix the dry ingredients: In a microwave-safe mug, combine the flour, sugar-free sweetener, cocoa powder, baking powder, and salt. Stir with a fork until evenly mixed and free of lumps.
Add the wet ingredients: Add the melted butter or oil, milk, and vanilla extract. Stir until a smooth, thick brownie batter forms. Fold in the sugar-free chocolate chips, if using.
Microwave and cool: Microwave on high for 60–70 seconds, checking at the 60-second mark. The top should look set while the center remains slightly moist. Carefully remove the hot mug and allow the brownie to cool for 2 minutes before enjoying.

Notes

Avoid overcooking: Start checking at 60 seconds. Microwave wattage and mug size affect cooking time.
Choose the right mug: Use a microwave-safe mug with enough room for the batter to rise.
Make it gluten-free: Substitute a 1:1 gluten-free baking flour blend. Almond flour can also work, although the texture will be denser.
Make it dairy-free: Use unsweetened plant-based milk and dairy-free butter or coconut oil.
Choose your sweetener carefully: Granulated allulose or a monk fruit blend formulated for baking works well. Sweetness and volume vary by brand.
Add your favorite toppings: Try sugar-free whipped cream, low-carb vanilla ice cream, or a pinch of flaky sea salt.
Storage: This single-serving brownie is best enjoyed immediately while warm, as microwave brownies tend to dry out as they cool.

Prep Time: 2 minutes
Cook Time: 1 minute 10 seconds
Category: Dessert
Cuisine: American

Nutrition

Serving Size: 1 serving
Calories: 380 kcal
Fat: 28 g
Carbohydrates: 30 g
Fiber: 4 g
Protein: 5 g