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+ servings
a plate with three sourdough blondies
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4.62 from 81 reviews

Sourdough Blondies

Butterscotch blondies get a boost of flavor from sourdough discard. These blondies are both gooey and light at the same time.
Prep Time: 20 minutes
Bake Time: 30 minutes
Total Time: 50 minutes
24 blondies

Ingredients 

  • 12 oz unsalted butter (melted)
  • 24 oz brown sugar (3 cups)
  • 4 large eggs
  • 1 ½ tablespoons vanilla extract
  • 8 oz sourdough discard (1 cup)
  • 12 ½ oz all purpose flour (2 ½ cups)
  • ½ teaspoon table salt

Instructions

  • Preheat the oven to 375 °F. Butter a 13" x 9" baking pan and line with parchment paper. You can just butter the pan but the parchment makes it much easier to remove the blondies from the pan.
  • In a large bowl, combine 12 oz unsalted butter and 24 oz brown sugar. Add4 large eggs and 1 ½ tablespoons vanilla extract, stir until combined then vigorously stir for 30 seconds. Fold in 8 oz sourdough discard. Stir in 12 ½ oz all purpose flour and ½ teaspoon table salt. Spread the batter into the pan.
  • Bake until the center springs back when lightly pressed and a toothpick inserted in the center comes out with wet crumbs, about 30 minutes.
  • Cool to room temperature before removing from the pan and cutting into 24 pieces.

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Notes

I like to use a very ripe discard in this recipe, one that hasn't been fed for at least a week.
The recipe can  be halved and baked in a 9x9 square pan.

Nutrition

Serving: 1square | Calories: 285kcal | Carbohydrates: 41g | Protein: 3g | Fat: 12g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.5g | Cholesterol: 58mg | Sodium: 69mg | Potassium: 68mg | Fiber: 0.5g | Sugar: 28g | Vitamin A: 394IU | Calcium: 33mg | Iron: 1mg
Have you tried this recipe?Mention @eileen.bakingsense or tag #bakingsense!