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A frosted sheet cake in a square baking pan sits on a marble surface next to a cake server, a plate with two forks, and a green-striped kitchen towel.
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Seven Minute Icing

Light, glossy, and sweet, 7-Minute Icing is the vintage frosting that never goes out of style. Whipped over a double boiler, it turns fluffy and marshmallow-like in just minutes. Spread it on cake while it’s soft, and you’ll have swirls that set into a cloud-like finish.
Course Dessert
Cuisine American
Prep Time 2 minutes
Cook Time 7 minutes
Total Time 9 minutes
Servings 16
Author Heidi Bruaw

Equipment

Ingredients

  • 1 Egg White
  • ⅛ teaspoon Cream of Tartar
  • ⅓ Cup Boiling Water
  • 1 Cup Sugar
  • 1 Pinch Salt
  • ½ teaspoon Vanilla Flavoring

Instructions

  • Put water in the bottom of a double boiler and place burner on high to boil.
  • Boil about a cup of water in separate small pan.
  • Stir sugar, salt, cream of tartar, and boiling water together and pour into upper pan of double boiler.
  • Put over the bottom of the double boiler (water should be boiling before doing so).
  • Add egg white (unbeaten).
  • Beat for about seven minutes with mixer, or until the icing is thick and ready to spread.
  • Add vanilla.