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Keto Vanilla Mug Cake – A Quick, Cozy Treat 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 blanched)
  • Coconut flour
  • Keto-friendly granular sweetener (erythritol, allulose, or a blend)
  • Baking powder (gluten-free, aluminum-free if possible)
  • Salt
  • Large egg
  • Unsalted butter (or coconut oil)
  • Heavy cream (or unsweetened almond milk)
  • Pure vanilla extract
  • Optional: sugar-free chocolate chips, cinnamon, or berries (a few for garnish)
  • Optional topping: sugar-free whipped cream or a dollop of Greek yogurt

Method
 

  1. Choose the right mug: Pick a microwave-safe mug that holds at least 12 ounces to prevent overflow. A wider mug helps the cake cook more evenly.
  2. Melt the butter: Add 1 tablespoon unsalted butter to the mug and microwave for about 15–25 seconds until melted. Swirl to coat the sides lightly.
  3. Add wet ingredients: Whisk in 1 large egg, 2 tablespoons heavy cream, and 1 teaspoon vanilla extract until smooth.
  4. Add dry ingredients: Stir in 3 tablespoons almond flour, 1 teaspoon coconut flour, 1.5–2 tablespoons keto sweetener, 1/2 teaspoon baking powder, and a pinch of salt. Mix until no dry streaks remain. The batter should be thick but pourable.
  5. Optional mix-ins: Fold in 1 tablespoon sugar-free chocolate chips or a pinch of cinnamon for extra flavor. Keep add-ins minimal to avoid heaviness.
  6. Microwave: Cook on high for 50–70 seconds. Start at 55 seconds, then check. The cake should rise and look set on top with a slight spring to the touch. Avoid overcooking, which can make it dry.
  7. Rest briefly: Let the mug cake stand for 1–2 minutes. It finishes setting and becomes easier to eat.
  8. Top and serve: Add a small dollop of sugar-free whipped cream or a sprinkle of cinnamon. Enjoy warm straight from the mug.