Sweetheart's Fudgy Keto Mug Cake
Sweetheart's Fudgy Keto Mug Cake is a rich, deeply chocolatey single-serve dessert that comes together in under five minutes using simple low-carb pantry staples. Made with almond flour, cocoa powder, and sugar free chocolate chips, it delivers a gooey, brownie-like texture that feels completely indulgent. It is the perfect quick keto treat for any night of the week.
Equipment
- 12-ounce microwave-safe mug
- Small whisk or fork
- Microwave
Ingredients
- 3 tablespoons finely blanched almond flour
- 1 tablespoon unsweetened cocoa powder Dutch-process preferred
- 2 tablespoons keto-friendly sweetener erythritol or monk fruit blend
- 1/4 teaspoon baking powder
- 1 pinch salt
- 1 large egg room temperature
- 1 tablespoon unsalted butter melted
- 1 tablespoon heavy cream
- 1/2 teaspoon vanilla extract
- 1 tablespoon sugar free chocolate chips plus extra for topping if desired
Instructions
- In a 12-ounce microwave-safe mug, combine the almond flour, cocoa powder, keto sweetener, baking powder, and salt. Whisk together with a fork until fully blended with no dry clumps remaining.
- Add the egg, melted butter, heavy cream, and vanilla extract to the mug. Stir vigorously until a smooth, thick batter forms with no streaks of dry flour visible.
- Fold in the sugar free chocolate chips, distributing them evenly throughout the batter.
- Place the mug in the center of the microwave and cook on high for 60 to 75 seconds. The edges should be set and the very center should still appear slightly soft and glossy. Do not overcook.
- Remove from the microwave and allow the cake to rest in the mug for 30 to 60 seconds. It will continue to cook slightly from residual heat and the texture will firm up to a fudgy, gooey consistency.
- Top with whipped cream, extra sugar free chocolate chips, a dusting of cocoa powder, or a scoop of keto ice cream. Serve immediately straight from the mug while warm.
Notes
For an extra fudgy center, stop microwaving at 60 seconds even if the top looks underdone. The cake firms up as it rests. Use a wide mug for even cooking. Room temperature eggs blend more smoothly with melted butter. Store any leftovers covered in the fridge for up to two days and reheat for 15 to 20 seconds. The dry ingredients can be pre-mixed and stored in a small jar for up to two weeks as a ready-to-go dessert kit.