Apple Cupcakes with Brown Sugar Buttercream

Photo Credit: http://www.madeinmelskitchen.com

Apple Cupcakes with Brown Sugar Buttercream

Original Recipe: http://www.madeinmelskitchen.com/2010/10/apple-cupcakes-with-brown-sugar-buttercream/

Ingredients:
Apple Cupcakes:

• 2 1/4 cups all-purpose flour
• 2 teaspoons baking soda
• 2 teaspoons ground cinnamon
• 1/2 teaspoon ground nutmeg
• 1 teaspoon salt
• 1/2 cup (1 stick) unsalted butter, softened
• 2 cups sugar
• 2 large eggs
• 1 teaspoon pure vanilla extract
• 4 cups coarsely shredded apples, such as Macintosh (about 1 3/4 pounds)

Brown Sugar Buttercream:

• 2 large egg whites
• 1/2 cup packed light-brown sugar
• 3/4 cup (1 1/2 sticks) cold unsalted butter, cut into tablespoons

Directions:
Apple Cupcakes:

1. Preheat oven to 350 degrees. Line 2 standard muffin tins with paper liners; set aside. Whisk together flour, baking soda, cinnamon, nutmeg, and salt in a medium bowl; set aside.
2. Put butter and sugar into the bowl of an electric mixer fitted with the paddle attachment; mix on medium-high speed until pale and fluffy, about 5 minutes. Mix in eggs and vanilla. Reduce speed to low; mix in apples. Add flour mixture; mix, scraping down sides of bowl as needed, until just combined.
3. Divide batter among lined cups, filling halfway; bake until tops are springy to the touch, 18 to 20 minutes. Remove cupcakes from tins; transfer to a wire rack; let cool completely.
4. Makes 2 dozen cupcakes.

Brown Sugar Buttercream:

1. Put egg whites and sugar into the heatproof bowl of an electric mixer set over a pan of simmering water. Cook, whisking constantly, until sugar has dissolved and mixture is warm to the touch (about 160 degrees).
2. Attach the bowl to the mixer fitted with the whisk attachment. Beat on high speed until stiff (but not dry) peaks form. Continue beating until mixture is fluffy and cooled, about 6 minutes.
3. Switch to the paddle attachment. With mixer on medium-low speed, add butter, several tablespoons at a time, mixing well after each addition. (If the frosting appears to separate after all the butter has been added, beat on medium-high speed until smooth again, 3 to 5 minutes more.) Reduce speed to low; mix to eliminate any air bubbles, about 2 minutes. Stir with a rubber spatula until frosting is smooth
4. Makes ~ 2 cups.