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+ servings
close up view of sliced sourdough lemon pound cake
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4.58 from 114 votes

Glazed Sourdough Lemon Cake

A sweet and delicious lemon cake made with your discarded sourdough starter.  Perfect as a breakfast, snack, or dessert!
Prep Time20 mins
Cook Time50 mins
Total Time1 hr 10 mins
Course: Dessert
Cuisine: American
Keyword: sourdough breakfast recipe, sourdough discard recipes, sourdough lemon cake, sourdough quick bread
Servings: 12 slices
Calories: 242kcal
Author: Katie Shaw

Ingredients

For the Cake

  • 1/2 cup vegetable oil (or melted butter)
  • 3/4 cup granulated sugar
  • 2 eggs
  • 1 1/2 cups flour
  • 1 1/2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 1 tablespoon fresh lemon zest
  • 1 tablespoon fresh lemon juice
  • 1/2 cup sourdough starter discard
  • 3/4 cup milk

For the Glaze

  • 1/2 cup powdered sugar
  • 2 teaspoons lemon zest
  • 2 teaspoons lemon juice

Instructions

  • Preheat oven to 350 degrees with the rack in the center.  Prepare a loaf pan or 9 x 9 square cake pan with cooking spray.
  • Combine the vegetable oil, eggs, and sugar in a large mixing bowl with an electric mixer until well combined.
    large mixing bowl with oil, eggs, sugar
  • Mix the flour, baking powder, and salt in a separate bowl and add to the sugar mixture 1/3 at a time, alternating with the milk and the sourdough starter.  Mix on low until just combined.  Stir in the lemon juice and lemon zest by hand.  Pour the batter into the prepared pan.
    finished cake batter in mixing bowl
  • Bake for 50-60 minutes (for the loaf pan) or 40-50 minutes (for the square pan) until golden brown and a toothpick inserted into the center comes out clean.  Place on a wire rack.  And allow to cool about 15 minutes in the pan.
    brown, baked cake

Make The Glaze

  • In a small bowl, combine the powdered sugar, lemon zest, and lemon juice for the glaze.  Pour over the still-warm cake.
    thick lemon glaze with zest
  •  After the glaze has soaked in and hardened, remove cake from pan and allow to finish cooling on wire rack.  Slice and serve once cool.
    wire rack with glazed cake

Notes

Having trouble with your cake sinking?  Try adding a teaspoon of baking soda along with the powder.  Cakes can also sink if they are underbaked: this recipe looks very browned before it bakes through.
Can be frozen if allowed to cool completely and then wrapped tightly.  Glaze after it's defrosted.
Be sure to try cinnamon sugar blueberry sourdough muffins if you love this cake!

Nutrition

Calories: 242kcal | Carbohydrates: 35g | Protein: 3g | Fat: 10g | Saturated Fat: 8g | Cholesterol: 29mg | Sodium: 259mg | Potassium: 47mg | Fiber: 1g | Sugar: 21g | Vitamin A: 64IU | Vitamin C: 1mg | Calcium: 53mg | Iron: 1mg