SALTED CARAMEL BUTTERCREAM

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Salted Caramel Buttercream image

Use the leftover caramel from this rich, sweet-and-salty frosting to give your cake or cupcakes (like our One-Bowl Chocolate Cupcakes) an extra-special swirl effect.

Provided by Martha Stewart

Categories     Food & Cooking     Dessert & Treats Recipes     Cake Recipes     Fillings & Frostings     Buttercream Frosting Recipes

Time 35m

Yield Makes 7 cups

Number Of Ingredients 7

3 1/2 cups sugar
1 cup plus 2 tablespoons heavy cream
9 large egg whites
1 teaspoon kosher salt
3 cups (6 sticks) unsalted butter, room temperature
1 1/2 teaspoons pure vanilla extract
Flaky sea salt, for garnish (optional)

Steps:

  • Combine 2 1/2 cups sugar and 3/4 cup water in a medium saucepan. Bring to a boil over high, stirring just until sugar dissolves. Cook, swirling the pot occasionally (not stirring), until dark amber, about 10 minutes. Remove from heat; slowly stir in cream until caramel is smooth (mixture will splatter). Set aside to cool.
  • Whisk together egg whites, kosher salt, and remaining 1 cup sugar in the bowl of a stand mixer set over (not in) a pot of simmering water. Whisk until sugar is dissolved and mixture is smooth and warm to the touch. Transfer bowl to mixer fitted with the whisk attachment; beat on medium-high speed until mixture is fluffy and cool, and stiff peaks form, about 10 minutes. Add butter 2 tablespoons at a time, whisking well after each addition. Whisk in vanilla. Slowly pour in 1 1/2 cups caramel with mixer on medium speed, and whisk until incorporated. Increase to high speed (the mixture will look curdled), and continue to whisk until smooth, about 3 minutes. Switch to the paddle attachment and beat on low speed for 2 minutes to remove air bubbles. Frost cake or cupcakes. Drizzle remaining caramel over the top, then swirl with a skewer or toothpick. Sprinkle with flaky salt, if desired.

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