Sourdough Starter Blondies Recipe for National Sourdough Day by Jan Mostrom

Sourdough Starter Blondies Recipe for National Sourdough Day

I make a lot of sourdough bread and I'm always interested in different recipes to use the discard from my starter. This sourdough starter blondies recipe is a great way to use up fresh discard. The results are a tasty sweet dessert that everyone will be excited to try!

To make these moist, delicious blondies you will need butter, an egg, sourdough starter, brown sugar, vanilla extract, white wheat flour or whole-wheat flour, baking powder, salt and baking chips. Get creative with the baking chips! You can use toffee chips, butterscotch chips, chocolate chips (dark, semisweet, white or milk) or whatever kind of baking chips you like.

These easy blondies are a fun way to use sourdough starter discard. Serve them for dessert with a cup of coffee of glass of milk, or as a sweet snack just because.

Note: 30Seconds is a participant in the Amazon affiliate advertising program and this post contains affiliate links, which means we may earn a commission or fees if you make a purchase via those links.

Cuisine: American
Prep Time: 20 minutes
Cook Time: 30 minutes
Total Time: 50 minutes
Servings: 12


Helpful Products

Recipe Notes

  • I melted butter first before I gathered the other ingredients and sped up the cooling by placing the melted butter into the freezer for 5 to 7 minutes.
  • In baking always used unsalted butter because it's way easier to control the salt by adding it vs. it being included in the butter. If you don't have unsalted, omit the added salt in the recipe.
  • Store the blondies in an airtight container for five days or freeze for up to two months.
  • Use starter that is unfed and has been discarded in the past week for best (not too sour) results.

Here's how to make it: 

  1. In a medium-sized bowl add melted butter, egg and sourdough discard. Blend thoroughly. Add the brown sugar and vanilla and mix completely.
  2. In another bowl add flour, baking powder and salt. Stir gently with a fork.
  3. Add the flour mixture to the wet ingredients and stir to combine. Add the chips and mix with the batter.
  4. Spread the batter into a parchment paper-lined 13x9-inch baking pan.
  5. Bake in a preheated 350-degree F oven for about 30 minutes, or until the brownies are golden brown.
  6. Cool for 30 to 60 minutes, then cut and enjoy!

Nutrition Facts Per Serving

Calories: 331

Total Fat: 17.3g

Saturated Fat: 10.5g

Cholesterol: 62mg

Sodium: 264mg

Total Carbohydrate: 37.3g

Dietary Fiber: 1.4g

Total Sugars: 21.7g

Protein: 3.1g

Vitamin D: 11mcg

Calcium: 41mg

Iron: 1mg

Potassium: 102mg

Recipe cooking times, nutritional information and servings are approximate and provided for your convenience. However, 30Seconds is not responsible for the outcome of any recipe, nor may you have the same results because of variations in ingredients, temperatures, altitude, errors, omissions or cooking/baking abilities. This recipe has been analyzed by VeryWellFit. However, any nutritional information is provided as a courtesy and it is up to the individual to ascertain accuracy. To ensure image quality, we may occasionally use stock photography.

Need to convert cooking and baking measurements? Here are some kitchen conversion charts. Here's how to submit your recipes to 30Seconds.

Take 30 seconds and join the 30Seconds community, and follow us on Facebook to get recipes in your newsfeed daily.

Related Products on Amazon We Think You May Like:

30Second Mobile, Inc. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.

Sourdough Starter Crackers Recipe: Make These Homemade Crackers ASAP

Easy Pumpkin-Shaped Sourdough Bread Recipe: A Step-By-Step Guide

4-Ingredient No-Knead French Bread Recipe: Fresh Homemade Bread In 3 Hours

Elisa Schmitz
Wonderful idea, Jan Mostrom . Love your kitchen creativity!

join discussion

Please login to comment.

recommended tips

3-Ingredient Blueberry Cobbler Recipe Almost Bakes Itself

Gluten-free 3-Ingredient Peanut Butter Cup Cookies Recipe

4-Ingredient Skillet Cherry Cobbler Recipe: Dump, Mix, Drop, Bake (Done!)

Healthy 3-Ingredient Banana Fudge Bombs Recipe Is How to Snack