Boiled Frosting from Mrs. Yamamoto

Boiled Frosting from Mrs. Yamamoto
Boiled frosting, also known as seven-minute frosting, is a classic American recipe cherished for its light, fluffy texture and glossy finish. Popular in the mid-20th century, it often adorned cakes at family gatherings, birthdays, and church potlucks. This traditional version by Katherine Yamamoto captures the essence of old-fashioned baking techniques, using simple pantry staples to create a soft, marshmallow-like frosting. The key lies in boiling the sugar syrup to the perfect stage before incorporating it into stiff egg whites for a voluminous, cloud-like result.
Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Course Baked Goods, Dessert
Cuisine American
Servings 10
Calories 79 kcal

Ingredients
  

  • 2 egg whites
  • 1 cup sugar
  • ½ cup water
  • Flavoring extract (e.g., vanilla, lemon – to taste)

Instructions
 

Step 1: Prepare Syrup

  • Combine sugar and water in a saucepan.
  • Boil until it reaches soft-ball stage (approx. 235°F/112°C), or until syrup spins a thread.
  • Do not stir once the syrup begins to boil.

Step 2: Beat Egg Whites

  • While syrup is boiling, beat egg whites until stiff but not dry.

Step 3: Combine and Whip

  • Slowly pour hot syrup into beaten egg whites while continuously beating.
  • Continue to beat until the frosting stands in stiff peaks and is glossy.

Step 4: Add Flavor

  • Stir in flavoring extract once the frosting has thickened.

Tips

  • Ensure no egg yolk gets into the whites or they won’t whip properly.
  • Add flavorings such as vanilla, lemon, almond, maple, or peppermint.
  • A pinch of cream of tartar helps stabilize the meringue.
  • Use a candy thermometer and heat syrup to soft-ball stage (235–240°F) for best results.
  • Make sure the bowl for beating egg whites is completely clean and grease-free.
  • Pour the hot syrup slowly in a thin stream to avoid scrambling the egg whites.
  • Beat until the frosting is glossy and holds stiff peaks.
  • Use immediately; it sets quickly and doesn’t store well.
  • Can be used for cakes, cupcakes, and layered desserts.

Nutrition

Calories: 79kcalCarbohydrates: 16.9gProtein: 1.2gSodium: 13mgPotassium: 18mgSugar: 16.9gCalcium: 3mgIron: 0.03mg
Keyword boiled icing, classic frosting, egg whites, fluffy, from scratch, heirloom, light and fluffy icing, mashmellow, meringue frosting, old-fashioned dessert
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