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Meringue Buttercream Double Batch

By April 22nd, 2019 Uncategorized

The smoothest, most buttery and delicious frosting you’ll ever make.

This luscious buttercream is made with a Swiss meringue technique. Swiss meringues, different than Italian meringues, mixes the sugar and egg whites together over heat, dissolving the sugar, then whipping it into a fluffy meringue. Add softened butter a little at a time and you end with the most dreamy, melt-in-your mouth frosting you can imagine.

Buttercream FrostingHere I’ve included a double batch recipe. My single batch, here, is just the same but makes about 5 cups instead of ten! You’ll need ten cups for my Party Rainbow Cake and other large creations.

Meringue Buttercream
Work Time
15 mins
Cook Time
10 mins
Total Time
25 mins
This is a double batch of my not-too-sweet buttercream. It is a great alternative to frosting made with confectioners' sugar.
Course: Dessert
Cuisine: American
Yield: 10 cups
Calories: 1719 kcal
  • 10 large egg whites
  • 2 ½ cups sugar
  • 8 sticks (4 cups) unsalted butter at room temperature
  • 2 tsp vanilla extract
  1. Whisk together egg whites and sugar in a heatproof mixing bowl over a pan of simmering water until sugar has dissolved, about 5 min. Test by rubbing the mixture between your fingers - you shouldn't feel any sugar crystals.
  2. Transfer bowl to the mixer with a whisk attachment or use a handheld mixer and beat on high until it cools and stiff peaks form, 10 to 12 min.
  3. Reduce speed to medium-high and add butter a few tablespoons at a time. (Buttercream may curdle but will become smooth as you continue to beat it.) Add Vanilla
  4. Use within a few hours or refrigerate for u to a week. Buttercream can be frozen for up to a month. Before using, bring to room temperature and beat on low until smooth.
Recipe Notes

This is a double batch of meringue buttercream that is needed for larger projects like Party Rainbow Cake.

Nutrition Facts
Meringue Buttercream
Amount Per Serving
Calories 1719 Calories from Fat 1314
% Daily Value*
Total Fat 146g 225%
Saturated Fat 92g 460%
Cholesterol 388mg 129%
Sodium 120mg 5%
Potassium 141mg 4%
Total Carbohydrates 100g 33%
Sugars 100g
Protein 8g 16%
Vitamin A 90.4%
Calcium 4.8%
Iron 0.5%
* Percent Daily Values are based on a 2000 calorie diet.



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