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High-protein peanut butter mug cake first spoonful showing moist texture and chocolate chips

High-Protein Peanut Butter Mug Cake Recipe – 5-Minute Microwave Magic

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  • Author: Emma Brookstone
  • Prep Time: PT2M
  • Cook Time: PT90S
  • Total Time: PT3M30S
  • Yield: 1 serving 1x
  • Category: Dessert
  • Method: Microwave
  • Cuisine: American

Description

A protein-packed peanut butter mug cake that’s ready in just 5 minutes! This high-protein microwave treat delivers 25g of protein while satisfying your dessert cravings. Perfect for post-workout fuel or late-night indulgence without the guilt.


Ingredients

Scale

1 scoop (30g) vanilla or chocolate protein powder

2 tablespoons natural peanut butter

1/4 cup unsweetened almond milk (or milk of choice)

1 tablespoon sugar-free maple syrup or stevia (to taste)

1 tablespoon unsweetened cocoa powder (for chocolate version)

1/2 teaspoon vanilla extract

Pinch of salt

1 tablespoon sugar-free chocolate chips (optional)


Instructions

1. Spray a large microwave-safe mug with cooking spray to prevent sticking.

2. Add peanut butter to mug and microwave for 20 seconds to soften slightly.

3. Whisk in almond milk, maple syrup, and vanilla extract until smooth.

4. Add protein powder, cocoa powder (if using), and salt. Mix thoroughly to eliminate clumps.

5. Fold in chocolate chips if desired for extra indulgence.

6. Microwave for 60-90 seconds, checking every 30 seconds until set but still slightly moist.

7. Let cool for 2-3 minutes before enjoying – the cake continues cooking from residual heat.


Notes

Cooking times vary by microwave wattage – start with less time and add more as needed

The cake should be set but still slightly moist when done

For a flourless version, add 1 tablespoon almond flour for extra structure

Store leftovers in refrigerator for up to 2 days (though it’s best enjoyed fresh)

Try topping with Greek yogurt, berries, or additional peanut butter for extra protein

This recipe provides approximately 25g of protein per serving

Substitute almond butter or sunflower seed butter for peanut allergies


Nutrition

  • Serving Size: 1 large mug cake
  • Calories: 285
  • Sugar: 3g
  • Sodium: 180mg
  • Fat: 16g
  • Saturated Fat: 3g
  • Unsaturated Fat: 11g
  • Trans Fat: 0g
  • Carbohydrates: 8g
  • Fiber: 3g
  • Protein: 25g
  • Cholesterol: 5mg