Kirbie's Cravings

Healthier PB Mug Cake

photo of a peanut butter mug cake

I’m back at the Greek yogurt thing again. This time I successfully created a lightened, healthier peanut butter mug cake using nonfat Greek strained yogurt and eliminating the egg and vegetable oil completely. This also eliminates 424 calories and 45 grams of fat.

The lightened recipe has 630 calories and 24 grams of fat if you eat the entire mug cake but I usually cut it into two servings because it’s quite a lot.close-up photo of a spoonful of cake

Like some of the other Greek yogurt substitute recipes I made, the crumb is a little more loose without the egg being a binding agent. But the Greek yogurt also creates a much more fudgy texture to the cake.

Even though it’s not as soft and fluffy I still really enjoyed it. And like all the other mug cakes, it’s so fast to make.
photo of a spoonful of peanut butter cake

Healthier Peanut Butter Mug Cake

Servings: 1
Prep Time: 4 minutes
Cook Time: 1 minute
Total Time: 5 minutes
Course: Dessert
Cuisine: American
This mug cake is a lightened-up, healthier peanut butter mug cake using nonfat Greek strained yogurt and eliminating the egg and vegetable oil completely. 


  • 4 tbsp all purpose flour
  • 4 tbsp white granulated sugar
  • 1/4 tsp baking powder
  • 3 tbsp peanut butter
  • 5 tbsp nonfat milk
  • 3 tbsp nonfat Greek strained yogurt


  • Combine all ingredients in an oversized coffee mug. Whisk well with a small whisk until smooth. 
  • Microwave on high for 1 1/2 minutes and then take it out to check to see if it is done. If not, continue to microwave in thirty second intervals. Mine was done at 2 minutes. You don’t want to overcook it or it will become rubbery. 
  • You can also make this into two smaller-sized mugs. You can mix the batter all in one mug and then pour half into another mug. Make sure you cook each one individually.


Serving: 1mug cake, Calories: 630kcal, Carbohydrates: 86g, Protein: 22g, Fat: 24g, Saturated Fat: 5g, Sodium: 269mg, Fiber: 3g, Sugar: 57g, NET CARBS: 83g

The nutrition information provided are only estimates based on an online nutritional calculator. I am not a certified nutritionist. Please consult a professional nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.

Did you make this recipe?I'd love to see it! Mention @KirbieCravings and tag #kirbiecravings!


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5 comments on “Healthier PB Mug Cake”

  1. Do you have any recipies for a coffee mug cake?

  2. Can I substitute ordinary yoghurt for the greek one?

  3. Awesome as always, mine won’t taste as good, but you can do 1T PB, 1 scoop protein powder, 2 egg whites, and ~1/4 cup of skim milk to get a super lightened version.

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