Peanut Butter Sourdough Mug Cake

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Sourdough mug cake is a fun way to have a small dessert that can be made in just a few minutes. We have a recipe for chocolate chip sourdough mug cake, which is one of our favorites! This peanut butter sourdough mug cake has just a few ingredient changes to give you some variety in your sourdough mug cake choices! 

Should I use an active starter or discard to make sourdough mug cake?

I have used this recipe with both active starter and discard and you can use either one to make this sourdough mug cake. If you’re using discard, the sourdough flavor will be stronger, so just keep that in mind. 

Can I add anything to this mug cake?

You can add a small spoonful of chocolate chips, or a small spoonful of baked, chopped apples. Add your mix-ins after you’ve added the sourdough starter and before you divide the batter into the two mugs. 

How many mug cakes does this recipe make?

Just like our chocolate chip sourdough mug cake, this recipe makes 2 mug cakes. It was tested with and we make it using the weighted measurements. If you don’t have a scale though, I do have the measurements to make this using cups and teaspoons! 

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How to Make Peanut Butter Sourdough Mug Cake:

Special Equipment:

Kitchen Scale

Or 

Measuring Cups

Measuring Spoons 

Ingredients:

75 grams of flour ½ cup

50 grams of sugar ¼ cup

6 grams of baking powder 1 ½ tsp

2 grams of salt ¼ tsp

70 grams of milk of your choice 5 ½ tbsp

14 grams of oil 1 tbsp

7 grams of vanilla extract 1 ½ tsp

50 grams of creamy peanut butter 3 tbsp

80 grams of starter 5 tbsp

Zero out a scale and place a bowl on top (if you’re weighing the ingredients). Combine the flour, sugar, baking powder, and salt in the bowl. Whisk so there are no clumps. Next, add in the milk, oil, peanut butter, and vanilla extract. Whisk well.

Then add in the sourdough starter. Whisk this in quickly. The mixture will become airy and start to rise.

Divide the batter evenly between two mugs and place in the microwave together. Cook for 2 minutes and 30 seconds. Then let the mug cake rest for 1 minute before eating. Enjoy warm, and serve with ice cream on top if you’re feeling fancy! 

What’s your late night snack of choice? Let us know in the comments below. 

Peanut Butter Sourdough Mug Cake

A 5 minute dessert for 2 that can be made with active starter or discard

5 from 1 vote

Print Recipe Pin Recipe

Prep Time 5 minutes mins

Cook Time 3 minutes mins

Total Time 8 minutes mins

Course Dessert

Cuisine American

Servings 2

Equipment

• kitchen scale optional

Ingredients

  

• 75 grams of flour ½ cup
• 50 grams of sugar ¼ cup
• 6 grams of baking powder 1 ½ tsp
• 2 grams of salt ¼ tsp
• 70 grams of milk of your choice 5 ½ tbsp
• 14 grams of oil 1 tbsp
• 7 grams of vanilla extract 1 ½ tsp
• 50 grams of creamy peanut butter 3 tbsp
• 80 grams of starter 5 tbsp

Instructions

 

• Zero out a scale and place a bowl on top (if you’re weighing the ingredients). Combine the flour, sugar, baking powder, and salt in the bowl. Whisk so there are no clumps.
• Next, add in the milk, oil, peanut butter, and vanilla extract. Whisk well.
• Then add in the sourdough starter. Whisk this in quickly. The mixture will become airy and start to rise.
• Divide the batter evenly between two mugs and place in the microwave together. Cook for 2 minutes and 30 seconds.
• Then let the mug cake rest for 1 minute before eating. Enjoy warm, and serve with ice cream on top if you’re feeling fancy!

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