3-Ingredient Flourless Peanut Butter Mug Cake

3-Ingredient Flourless Peanut Butter Mug Cake


Servings 1 mug
Time Needed Prep
Ingredients 3
Difficulty Easy

Rating (click to rate)

3.7 based on 64 ratings.


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

Nutrition Information

Qty per
283g serve
Qty per
Energy 514cal 181cal
Protein 46g 16g
Fat (total) 28g 10g
 - saturated 7.6g 2.7g
Carbohydrate 21g 7g
 - sugars 11.1g 3.9g
Dietary Fibre 6g 2.1g
Sodium 645mg 228mg

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

3-Ingredient Flourless Peanut Butter Mug Cake is another must try recipe. Exhausted? Running late? No worries! You can whip this up in just 5 minutes!

mug cake | Stay at Home


  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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