Foolproof Buttercream Frosting Recipe

This foolproof buttercream frosting recipe from Sunset Magazine is unbelievably easy and incredibly versatile! Make it up to a week in advance – simply cover and chill. Before using, bring to room temperature and give it a quick beat for perfect texture. Get creative! Swap the vanilla for a boozy kick (2-3 tablespoons of your favorite liqueur), rich chocolate (6 ounces melted bittersweet chocolate), or a burst of fruity flavor (up to ½ cup strained jam). This recipe is your secret weapon for unbelievably delicious cakes, cupcakes, and more!

Prep Time 15 mins
Cook Time 25 mins
Calories 1349 kcal
Protein 11g
Rating 3.5 (2 Reviews)
Foolproof Buttercream Frosting

Recipe Actions

Share this recipe:

Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Foolproof Buttercream Frosting

  • 4 large egg yolks
  • 1 ½ cups granulated sugar
  • Light Corn Syrup
  • Unsalted Butter
  • 1 teaspoon pure vanilla extract (or 2-3 tablespoons liqueur, 6 ounces melted bittersweet chocolate, or up to ½ cup strained jam)

Cook Smarter with Sous, Your Kitchen Companion

Missing an ingredient for this Foolproof Buttercream Frosting? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.

How to Make Foolproof Buttercream Frosting

  1. In a mixing bowl, beat 4 large egg yolks at high speed until pale yellow and fluffy (approximately 4-5 minutes).
  2. Lightly butter a 2-cup glass measuring cup.
  3. In a 2- to 3-quart saucepan, combine 1 ½ cups granulated sugar and ½ cup light corn syrup.
  4. Cook over medium-high heat, stirring constantly until the sugar is completely dissolved and the mixture reaches a rolling boil (235°F on a candy thermometer).
  5. Immediately pour the hot sugar syrup into the buttered measuring cup.
  6. With the mixer running at medium speed, slowly pour the hot syrup in a thin, steady stream into the beaten egg yolks, beating constantly.
  7. Continue beating until the mixture is completely cool and room temperature (this will take about 10-15 minutes).
  8. Add 1 cup (2 sticks) unsalted butter, softened, and 1 teaspoon pure vanilla extract (or desired substitutions).
  9. Beat until the frosting is smooth and creamy.

Nutrition Information (Approximate per serving)

Sodium

2 g

Sugar

228g

Fat

347g

Carbs

27g