3-Ingredient Flourless Peanut Butter Mug Cake

3-Ingredient Flourless Peanut Butter Mug Cake


Time Needed Prep
Ingredients 3
Difficulty Easy

Rating (click to rate)

3.6 based on 68 ratings.


  • 3 tbsp Peanut Butter creamy
  • 1 tbsp White Sugar granulated
  • 1 Egg

Nutrition Information

Qty per
0g serve
Qty per
Energy 0cal 181cal
Protein 0g 16.07g
Fat (total) 0g 9.75g
 - saturated 0g 2.68g
Carbohydrate 0g 7.4g
 - sugars 0g 3.92g
Dietary Fibre 0g 2.12g
Sodium 0mg 227.79mg

Please Note - Nutritional information is provided as a guide only and may not be accurate.

3-Ingredient Flourless Peanut Butter Mug Cake is another one of our must try recipes.

Exhausted? Running late? No worries! You can whip this up in just 5 minutes!

3-Ingredient Flourless Peanut Butter Mug Cake | Stay at Home Mum

May I also add that peanut butter is really good for the brain, so it’s perfect for students or anyone studying.


  1. Whisk all ingredients in a bowl until the batter is smooth and the egg is properly whisked in.

  2. Pour content into an oversized mug that is suitable for microwaving.

  3. Microwave mug for one minute.

  4. Cool first before eating, but make sure to consume not more than an hour as it is best to eat while warm.

Recipe Hints and Tips:

  • This 3-Ingredient Flourless Peanut Butter Mug Cake Recipe can be frozen up to two months.
  • You can create another version of this Peanut Butter Mug Cake by adding baking powder (just 1/8 tsp) and follow the same steps.
  • Or an Eggless Peanut Butter Mug Cake! Just scratch out the eggs from the list, add in 1/4 tsp baking powder, 4 tbsp fat-free milk and 4 tbsp all-purpose flour.
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