Julian Child's Brown Sugar Buttercream Frosting
Prep Time: 30 min | Cook Time: 10 min | Servings: enough for two pumpkin cheesecakes | Difficulty:Easy
Ingredients:
- 2 cups light brown sugar
- 2 tbsp sugar
- 2/3 cup water
- 2/3 cup egg whites
- 1/8 tsp Cream of Tartar
- 1 lb butter (4 sticks), softened
- (Kosher salt)
- 1 1/2 teaspoons vanilla extract
- Special Equipment: candy thermometer
Directions:
Mix 2 cups brown sugar with water in a small, heavy saucepan. Cook over high heat until syrup reaches 248 degrees F on a candy thermometer. DO NOT STIR.
While syrup is cooking, beat egg whites with Cream of Tartar and 2 tablespoons sugar until stiff but not dry.* (Extra- fine granulated sugar works best). Turn mixer off until syrup is ready.
With mixer running, pour syrup into the egg whites in a thin, steady stream, making sure not to pour directly onto beaters. Be careful, as hot syrup can burn if you. Continue to beat mixture until it is no longer hot.
Allow to cool to room temperature and then beat in the softened butter, 1 tablespoon at a time, until all is incorporated. (Salted butter works fine. If you are using unsalted butter, add 1/3 teaspoon salt, or to taste.) The mixture will become thin and may look curdled at first, but will then become smooth as it beats. Lastly, beat in the vanilla all at once.