This quick and easy air fryer brownie for one is low carb, keto-friendly, gluten free, and ready in under 10 minutes. With under 5 net carbs, it’s the perfect single-serving dessert when you want something rich and fudgy without baking a whole pan.
Can you make Brownies in an Air Fryer?
Yes. You can make a rich, chocolate brownie with melty dark chocolate chips right in an air fryer. Large pans of baked goods can sometimes cook unevenly in air fryers, with edges overcooking before the center sets. Making single servings in a ramekin solves that problem: the brownie cooks evenly and stays fudgy in the center.
This recipe is ideal for solo desserts or late-night cravings. If you’re sharing, most small air fryers can fit two or three ramekins so you can make several portions at once. This single-serve brownie is satisfying and under 300 calories and about 4.9 net carbs, depending on ingredients.
Ingredients for Keto Mug Brownies
Overview of what you’ll need. For best results use a 6 ounce ramekin for this recipe.
- Butter: salted or unsalted, melted.
- Almond flour: the base of the gluten-free batter. (See notes for coconut flour alternative.)
- Keto-friendly sweetener: monk fruit or a granular erythritol blend (Swerve), golden or white. Regular sugar works if you’re not following keto.
- Cocoa powder: use a good-quality cocoa for better chocolate flavor.
- Egg white: use only the white to keep the texture fudgy; using the whole egg yields a cakier result.
- Baking powder, vanilla extract, and a pinch of salt: for lift and balanced flavor.
- Sugar-free chocolate chips: I used dark chocolate chips, but use any sugar-free variety you prefer.
How to Make Brownies in an Air Fryer
This recipe is simple because you mix the batter right in the ramekin and cook it in the air fryer — minimal cleanup and a fast dessert.
- Melt the butter in a small ramekin, then add almond flour, sweetener, cocoa powder, baking powder, a pinch of salt, the egg white, and vanilla. The batter will be thick; mix only until combined so it stays glossy like a boxed brownie mix. Fold in the sugar-free chocolate chips.
- Preheat your air fryer to 325°F (163°C) for 3 minutes. Place the filled ramekin in the preheated air fryer.
- For a fudgy center, cook about 6 minutes; the edges will be fully set and the center slightly underdone. For a fully set brownie, cook about 8 minutes. Allow the brownie to rest for 1 minute before eating.
What temperature do you cook brownies in an air fryer?
Use a moderate temperature: preheat the air fryer to 325°F. High temperatures cook quickly but can dry or overbrown baked goods. A lower temperature allows the brownie to cook through more evenly without tough edges.
How long do you cook brownies in an air fryer?
- 325°F for about 6 minutes — yields fudgy brownies with slightly underdone centers (my personal favorite).
- 325°F for about 8 minutes — yields brownies cooked through.
- Let the ramekin sit for one minute after cooking to let the center settle before serving.
Can you make Air Fryer Brownies with coconut flour?
Yes. Coconut flour absorbs much more liquid than almond flour, so reduce the amount to 2.5 teaspoons if substituting. The brownies will still be chocolatey without a noticeable coconut flavor.
Tips for the Best Air Fryer Brownies
- Preheat the air fryer: this helps the brownie cook evenly from the start and prevents uneven texture.
- Use only the egg white: whole eggs create a lighter, cake-like texture. If you want fudgy, stick to the white.
- Adjust cook time to preference: start with 6 minutes for a gooey center or 8 minutes for a fully set brownie; air fryer models vary so watch closely.
- Use a 6-ounce ramekin: that size works well for the listed times. Larger or smaller dishes will change the cooking time.
- Toppings: serve plain or add a dollop of whipped cream, a drizzle of keto-friendly caramel, or a small scoop of low-carb ice cream if desired.
More Gluten Free Brownies:
- Almond Butter Brownies
- Keto Mocha Cheesecake Brownies
- Salted Caramel Stuffed Keto Brownies
- Keto Peanut Butter Cheesecake Brownies
Other Air Fryer Recipes
- Air Fryer Zucchini Boat
- Easy Mozzarella Sticks
- The Perfect Air Fryer Baked Potato
- Cauliflower Tots
Air Fryer Brownies
Ingredients
- 1 tablespoon butter, melted
- 3 tablespoon almond flour
- 1 1/2 tablespoon monkfruit sweetener
- 1 tablespoon cocoa powder
- 1/2 teaspoon baking powder
- pinch of salt
- 1 egg white
- 2 tablespoons sugar free chocolate chips
Instructions
- Melt the butter in a small ramekin, then add almond flour, sweetener, cocoa powder, baking powder, salt, and the egg white. The mixture will be thick—mix just until combined so it stays glossy. Fold in the chocolate chips.
- Preheat the air fryer to 325°F (163°C) for 3 minutes and add the ramekin. For a fudgy center, cook about 6 minutes; for fully set brownies, cook about 8 minutes.
- Allow the brownie to sit for 1 minute before serving.
Notes
If using coconut flour instead of almond flour, reduce the amount to 2.5 teaspoons. Coconut flour soaks up more moisture, so less is needed.
Net carbs: 4.9 g per serving
Nutrition
Nutrition information is automatically calculated and should be used as an approximation.
Additional Info
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