Low-Carb Chocolate Peanut Butter Mug Cake
Servings
Number of servings1 mug cake
Serving size1 mug cake (about 125g)
Low CarbDessert

Low-Carb Chocolate Peanut Butter Mug Cake

A quick single-serving low-carb mug cake with chocolate, peanut butter, almond flour, and egg.

Calories300
Net carbs5g
Macro split7% net carbs / 78% fat / 13% protein
Servings1 mug cake
Serving size1 mug cake (about 125g)

Servings

Servings1 mug cake
Serving size1 mug cake (about 125g)
Nutrition based on1 mug cake (about 125g)

This recipe makes 1 mug cake. The calories and macros below are for 1 mug cake (about 125g).

Time & temperature

Prep time4 min
Cook / chill time60–90 sec microwave
Heat levelmicrowave high

Cooking times are written into the steps below so the recipe is easier to follow from start to finish.

Ingredients

  • 2 tablespoons almond flour
  • 1 tablespoon unsweetened cocoa powder
  • 1 tablespoon creamy peanut butter
  • 1 tablespoon powdered erythritol (or your keto-friendly sweetener of choice)
  • 1 tablespoon butter
  • 1 large egg
  • 1 tablespoon sugar-free chocolate chips (optional)
  • Pinch of salt (optional)

Instructions

  1. Add the butter and peanut butter to a microwave-safe mug and microwave 15–20 seconds, just until softened. Stir until smooth.
  2. Whisk in the egg until fully combined, then stir in almond flour, cocoa powder, sweetener, and a pinch of salt if using.
  3. Fold in the sugar-free chocolate chips if using and smooth the top of the batter.
  4. Microwave on high for 60–90 seconds, checking at 60 seconds. The cake is done when the top is set but still soft.
  5. Let the mug cake rest for 1–2 minutes before eating; it will continue to firm as it cools.

Nutrition per serving

Serving size1 mug cake (about 125g)
Calories300
Macro split7% net carbs / 78% fat / 13% protein
Total carbs10g
Fiber5g
Sugar1g
Added sugar0g
Net carbs5g
Protein10g
Fat26g

Calories, macros, and macro split are approximate per 1 mug cake (about 125g). Net carbs = total carbs minus fiber.

Fits this plan because…

Low Carb matchLow-Carb Chocolate Peanut Butter Mug Cake keeps the recipe positioned in the Low Carb lane with a clearly labeled calorie count, net-carb target, protein, fat, and serving size.

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