Handwritten recipe card for Golden Sponge Cake
by: salvagedrecipes

Golden Sponge Cake with Custard Filling

Golden Sponge Cake
Golden Sponge Cake is a timeless classic with a bright, citrus-kissed flavor and a cloud-like texture. This light and airy cake was a staple in mid-century American kitchens, often baked for special occasions or Sunday desserts. Its delicate structure comes from whipped egg yolks and whites, while orange zest and lemon juice give it a refreshing lift. With no butter or oil, it offers a unique crumb that's ideal for layering with custard fillings or fresh fruits. Whether served plain, dusted with sugar, or dressed up, it remains a golden standard in vintage baking.
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Prep Time 25 minutes
Cook Time 1 hour
Cooling Time 1 hour
Total Time 2 hours 25 minutes
Course Dessert
Cuisine American
Servings 12
Calories 145 kcal

Ingredients
  

Cake:

  • 1½ cup cake flour
  • 2 tsp baking powder
  • ½ tsp salt
  • 6 egg yolks
  • 1 cup sugar
  • ½ tbsp grated orange rind
  • 1 tbsp lemon juice
  • ½ cup boiling water

Custard Filling (optional):

  • 2 eggs
  • ⅛ tsp salt
  • 2 cups milk
  • ½ tsp vanilla
  • ¼ cup sugar

Instructions
 

Step 1: Mix Dry Ingredients

  • Sift together flour, baking powder, and salt.

Step 2: Beat Yolks

  • Beat 6 egg yolks until thick and light-colored.

Step 3: Combine with Sugar

  • Gradually add 1 cup sugar to yolks, beating until very thick.

Step 4: Add Flavorings

  • Stir in grated orange rind, lemon juice, and boiling water.

Step 5: Fold in Flour

  • Gradually fold in sifted flour mixture.

Step 6: Bake

  • Pour into an ungreased pan.
  • Bake at 350°F for 50–60 minutes.
  • Invert pan and let cool upside down.

Tips

  • Separate eggs carefully to ensure maximum volume in the sponge
  • Beat yolks until very thick and pale for best texture
  • Fold flour gently to avoid deflating the batter
  • Use fresh citrus zest for the brightest flavor
  • Bake in an ungreased pan so the cake can climb the sides
  • Cool cake upside down to maintain height
  • Custard can be made a day ahead and chilled
  • Serve with fresh berries for contrast
  • Lightly dust with powdered sugar before serving

Nutrition

Calories: 145kcalCarbohydrates: 29gProtein: 3gFat: 12gSaturated Fat: 5gPolyunsaturated Fat: 1.8gMonounsaturated Fat: 3.5gCholesterol: 106mgSodium: 120mgPotassium: 65mgFiber: 0.5gSugar: 19gVitamin A: 210IUVitamin C: 2mgCalcium: 18mgIron: 0.7mg
Keyword bake from scratch, citrus cake, custard filling, family favorite, heirloom dessert, retro recipe, sponge cake, vintage baking
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