Boiled Frosting

Prep: 10 min Cook: 15 min Serves: 8 Cuisine: American

Boiled frosting is a classic dessert topping known for its glossy, fluffy texture and rich vanilla flavor. Perfect for decorating cakes or pies, it appeals to those who enjoy homemade, nostalgic confections with a sweet, smooth finish. Its simple ingredients make it accessible for bakers of all levels.

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Ingredients

  • 1 c. sugar
  • 1/3 c. water
  • 1 Tbsp. light corn syrup
  • 1/8 tsp. salt
  • 2 egg whites
  • 1 tsp. vanilla

Instructions

  1. Combine sugar, water, corn syrup, and salt in a saucepan.
  2. Stir to combine.
  3. Bring to a boil slowly without stirring until the mixture spins a long thread when a little is dropped from a spoon, holding the spoon high above the saucepan (238° to 242°F).
  4. In a mixing bowl, beat egg whites until stiff, about 2 1/2 minutes.
  5. Pour hot syrup slowly over the egg whites while beating.
  6. Continue beating until the mixture is fluffy and will hold its shape. Add vanilla.
  7. Spread the frosting on the cake.

Tips & Substitutions

To achieve the perfect consistency, ensure your sugar syrup reaches the right temperature between 238°F to 242°F, as this is crucial for the frosting to hold its shape. If you need a substitute for corn syrup, consider using light agave syrup, which works similarly. For a richer flavor, try adding a pinch of cocoa powder for a chocolate version of this frosting.

Serving Suggestions

This boiled frosting is perfect for topping layer cakes, especially vanilla or chocolate varieties. It pairs beautifully with Candied Carrots And Grapes for a delightful dessert spread. Consider using it to frost cupcakes or as a filling for sandwich cookies for an elegant treat.

Storage & Reheating

Store any leftover boiled frosting in an airtight container in the refrigerator for up to 3 days. When ready to use, allow it to come to room temperature and re-whip briefly to restore its fluffy texture. Avoid freezing, as the texture may separate upon thawing.

Nutrition & Diet Analysis (per serving)

Each serving of Boiled Frosting contains roughly 99 calories, with 0g protein, 25g carbohydrates, and 0g fat.

99 kcal 5% DV
Protein Fat Carbs

Macronutrients

Protein 0.3g 1% DV
Total Fat 0g
Carbs 25.4g 9% DV
Fiber 0.4g 2% DV
Sugar 22.9g 46% DV

Electrolytes

Sodium 245.2mg 11% DV
Potassium 28.4mg 1% DV

Vitamins & Minerals

Vitamin C 3.6mg 4% DV
Calcium 4.1mg
Iron 0.1mg
Diet fit Under 400 cal Low-fat
Contains Egg

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use pasteurized egg whites instead of fresh?

Yes, you can use pasteurized egg whites for safety, especially if you're concerned about consuming raw eggs. They whip up nicely and will work well in this recipe. Just follow the same measurements for a successful outcome.

What can I do if the frosting is too runny?

If your frosting turns out too runny, it may not have reached the correct temperature during cooking. You can try re-cooking the syrup briefly while stirring until it thickens. Alternatively, you might consider adding a bit of powdered sugar to achieve the desired consistency.

How do I know when to stop beating the egg whites?

Beat the egg whites until they form stiff peaks, which means the mixture holds its shape firmly and doesn't droop when you lift the beaters. This usually takes about 2 to 2.5 minutes. Be careful not to overbeat, as this can lead to a dry texture.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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