7/22/2025

Published July 22, 2025 by

Keto Peanut Butter Mug Cake

Let’s be real — some days you just need dessert now. That’s where this Keto Peanut Butter Mug Cake comes to the rescue. ☕️🧁 No oven. No waiting. Just mix, microwave, and munch. It’s become my go-to when those 9PM cravings hit, and I bet it’ll become yours too!

🥜 Keto Peanut Butter Mug Cake – 90 Seconds to Low-Carb Bliss

Summary: Craving a quick and easy low-carb treat? This Keto Peanut Butter Mug Cake is rich, fluffy, and ready in just 90 seconds! It’s perfect for busy days when you need a satisfying keto dessert fast — without the sugar spike.

📝 Ingredients:

  • 2 tbsp peanut butter (unsweetened, natural)
  • 1 egg
  • 1 tbsp almond flour
  • 1 tbsp sweetener (erythritol or monk fruit)
  • 1/4 tsp baking powder
  • 1/4 tsp vanilla extract
  • Pinch of salt

🔪 Instructions:

  1. In a microwave-safe mug, whisk together the egg and peanut butter until smooth.
  2. Add almond flour, sweetener, baking powder, vanilla, and salt. Stir well.
  3. Microwave on high for 60–90 seconds, or until the cake has risen and is set.
  4. Let cool for a minute. Optional: Top with sugar-free whipped cream or keto chocolate chips!

📌 Tips:

  • Add a square of 85% dark chocolate in the center before microwaving for a gooey lava center.
  • For nut-free, try sunflower seed butter instead of peanut butter.

🍽️ Nutrition (Approx. Per Serving):

  • Calories: 280
  • Net Carbs: 4g
  • Protein: 11g
  • Fat: 24g

This fluffy peanut butter mug cake is a must-try for any keto dessert lover. Sweet, simple, and done in minutes!

👩‍🍳 Nisar’s Note: I sometimes sprinkle a pinch of cinnamon or add a few sugar-free chocolate chips before microwaving. Little twist, big flavor!

Author : Nisar Mehmood

💬 What’s Your Favorite Mug Cake Flavor?

Made this recipe? Tag me on @99ketocrave — I’d love to see your delicious creations! Or leave a comment below and let me know how it turned out. 🍰✨