Keto Chocolate Chip Mug Cake

"freshly-baked keto chocolate chip mug cake with melting chips on a marble counter"

Keto Chocolate Chip Mug Cake

(A Quick 5-Minute Low-Carb Treat)

Prep Time: 5 minutes
Cook Time: 60-90 seconds
Total Time: 7 minutes
Servings: 1
Difficulty: Easy
Dietary: Keto, Low-Carb, Gluten-Free (Dairy-Free option available)
Net Carbs: 3.7g per serving

Equipment Needed:

  • 12 oz (or larger) microwave-safe mug
  • Fork or small whisk
  • Measuring spoons
  • Alternative: Oven-safe ramekin if not using microwave

Ingredients:

Dry Ingredients:
  • 3 tbsp (21g) almond flour [Sub: 1 tbsp coconut flour]
  • 1.5-2 tbsp (18-24g) granulated sweetener [Erythritol, Lakanto, or Swerve]
  • ½ tsp baking powder
  • Pinch of salt
Wet Ingredients:
  • 1 large egg, room temperature
  • 1 tbsp (15ml) melted butter or coconut oil
  • ¼ tsp vanilla extract
  • 1.5-2 tbsp sugar-free chocolate chips, divided [Lily’s recommended]
Professional food photography of dry ingredients preparation in a modern kitchen, featuring almond flour, erythritol, baking powder, and salt in prep bowls on a white marble countertop

Method:

  1. Grease your mug thoroughly with butter or coconut oil.
  2. Combine all dry ingredients in the mug, mixing well.
  3. Add egg, melted butter, and vanilla – whisk until completely smooth.
  4. Fold in half the chocolate chips.
  5. Microwave on HIGH for 60-90 seconds until the top is just set but still slightly soft.
  6. Immediately top with the remaining chocolate chips and let stand for 1 minute.
Wooden whisk stirring smooth batter in a cream-colored ceramic bowl with cracked eggshell, melted butter, and vanilla extract on a white marble countertop in a modern kitchen setup

Crucial Tips:

  • Don’t overcook! Better slightly underdone than dry.
  • Use room temperature egg for better mixing.
  • Mug should be at least twice the volume of batter to prevent overflow.
  • Watch closely after 60 seconds – cooking time varies by microwave.
Hand adding sugar-free chocolate chips to batter in a modern kitchen with white marble countertops and green subway tile backsplash

Storage & Variations:

Storage:

Best eaten immediately, can refrigerate up to 3 days.

Scaling:

Recipe designed for single serving.

Variations:
  • Add 1 tbsp cocoa powder for double chocolate.
  • Mix in chopped nuts or unsweetened coconut.
  • Top with keto whipped cream or berries.
See also  Classic Greek Eggplant Moussaka
Freshly microwaved cake in a mug on a modern white marble kitchen counter with warm, natural lighting

Common Mistakes:

  • Using hot melted butter (will cook the egg).
  • Overcooking (leads to rubbery texture).
  • Not mixing batter thoroughly.
  • Using too small a mug.
Modern kitchen with marble countertops, stainless steel appliances and a mug cake with melting chocolate chips on the counter

The perfect keto mug cake should be moist, tender, and ready in minutes – just like its high-carb cousins, but without the sugar crash!

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