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Keto Cinnamon Roll Mug Cake - Warm, Cozy, and Ready in Minutes

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Prep Time 5 minutes
Cook Time 2 minutes
Total Time 7 minutes
Servings: 1 servings
Ingredients Method

Ingredients
  

  • Almond flour (finely ground, blanched works best)
  • Coconut flour
  • Baking powder
  • Salt
  • Granulated keto sweetener (like erythritol, allulose, or a blend)
  • Brown-style keto sweetener (for the cinnamon swirl; optional but recommended)
  • Cinnamon (ground)
  • Egg (large)
  • Unsweetened almond milk (or heavy cream for richer flavor)
  • Butter (melted; use coconut oil or dairy-free butter if needed)
  • Vanilla extract
  • Cream cheese (softened, for frosting)
  • Powdered keto sweetener (for frosting)
  • A pinch of lemon juice or a splash of almond milk (to thin the frosting, optional)

Method
 

  1. Pick the right mug: Use a microwave-safe mug that holds at least 12 ounces. A wider mug helps the cake cook evenly.
  2. Make the batter: In the mug, whisk 3 tablespoons almond flour, 1 teaspoon coconut flour, 1/4 teaspoon baking powder, a pinch of salt, and 1–2 teaspoons granulated keto sweetener.
  3. Add wet ingredients: Whisk in 1 large egg, 1 tablespoon melted butter, 1 tablespoon unsweetened almond milk, and 1/2 teaspoon vanilla extract. Stir until smooth with no dry spots.
  4. Mix the cinnamon swirl: In a small bowl, combine 1 teaspoon cinnamon with 1–2 teaspoons brown-style keto sweetener and 1 teaspoon melted butter. Stir into a paste.
  5. Layer and swirl: Spoon half the batter into the mug. Drizzle half the cinnamon mixture on top. Add the rest of the batter, then the remaining cinnamon. Use a toothpick or knife to gently swirl.
  6. Microwave: Cook on high for 60–90 seconds. Start checking at 60 seconds. The top should look set and spring back lightly. If it’s wet in the center, microwave in 10–15 second bursts.
  7. Make quick frosting: In a small bowl, mash 1 tablespoon softened cream cheese with 1 tablespoon powdered keto sweetener and a few drops of vanilla. Thin with a tiny splash of almond milk if needed until spreadable.
  8. Finish and serve: Let the cake rest for 1–2 minutes to set. Spread or drizzle the frosting over the warm cake. Enjoy straight from the mug.