Chocolate Cupcakes with Crispy Magic Frosting

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These rich chocolaty treats come courtesy of Joanne Chang, chef/owner of Flour Bakery & Café in Boston. With their moist texture and sweet topping, they're one of her best-sellers.

Ingredients

2 ounces (56 grams) unsweetened chocolate, chopped
1/4 cup (30 grams) Dutch-processed cocoa powder
1 cup (200 grams) granulated sugar
1/2 cup (1 stick/114 grams) unsalted butter
1/3 cup (80 grams) water
1/2 cup (120 grams) milk
1 egg
1 egg yolk
1/2 teaspoon vanilla extract
1 cup (140 grams) unbleached all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon kosher salt

Instructions

Position a rack in the center of the oven, and heat the oven to 350 degrees F. Butter and flour a standard 12-cup muffin tin, or line with paper liners.

In a small heatproof bowl, combine the chocolate and cocoa powder. In a small saucepan, heat the granulated sugar, butter, and water over medium-high heat, whisking occasionally, for 3 to 4 minutes, or until the butter is melted and the sugar is dissolved. Pour the hot butter-sugar mixture over the chocolate-cocoa mixture and whisk until the chocolate is completely melted and the mixture is homogeneous.

Whisk the milk, egg, egg yolk, and vanilla into the chocolate mixture until thoroughly combined.

In a bowl, stir together the flour, baking powder, baking soda, and salt until well mixed. Dump the flour mixture on top of the chocolate mixture. Whisk until the dry ingredients are totally mixed into the chocolate mixture. Let the batter sit for at least 1 hour at room temperature, or transfer to an airtight container and store in the refrigerator for up to 3 days. (This allows the liquid to be totally absorbeci into the batter, so the batter thickens up a bit and isn't so soupy.)

Spoon the batter into the prepared muffin cups, dividing it evenly and filling the cups to the rim. Bake for about 30 minutes, or until the tops spring back when pressed with a fingertip. Let cool completely in the pan on a wire rack.

Crispy Magic Frosting

Ingredients

2/3 cup (140 grams) granulated sugar
1-1/2 cups (3 sticks/342 grams) unsalted butter, at room temperature, cut into 2-inch chunks
1-2/3 cups (230 grams) confectioners' sugar
1/4 teaspoon kosher salt
2 tablespoons milk
1 tablespoon vanilla extract

Instructions

To make the frosting: While the cupcakes are cooling, in a small heatproof bowl. whisk together the granulated sugar and egg wh!tes to make a thick slurry. Place the bowl over (not touching) simmering water in a saucepan and heat, whisking occasionally, for 3 to 5 minutes. or until the mixture is hot to the touch. It will thin out a bit as the sugar melts.

Remove from the heat and scrape the mixture into the bowl of a stand mixer fitted with a whip attachment (or use a handheld mixer). Whip on medium-high speed for 6 to 8 minutes, or until the mixture becomes a light, white meringue and is cool to the touch. Turn down the speed to medium, add the butter, a few chunks at a time. and beat for 3 to 4 minutes, or until the butter is thoroughly incorporated. Add the confectioners' sugar, salt, milk, and vanilla and continue to beat on medium speed until the mixture is smooth and satiny. You should have about 3-½ cups. (Use immediately. or transfer to an airtight container and store at room temperature for up to 3 days, then beat with the stand mixer fitted with the paddle attachment for a few minutes until smooth before using. Or, store in an airtight container in the refrigerator for up to 2 weeks, then bring to room temperature and paddle for a few minutes until smooth before using.)

Remove the cupcakes from the muffin tin. Fit a pastry bag with a small round or star tip and fill the bag with the frosting, then pipe the frosting onto cupcakes. Or, spread the frosting on the cupcakes with an icing spatula.

The cupcakes taste best on the day they are baked, but they can be stored in an airtight container at room temperature for up to 2 days.

Cooking & Recipes

Yield: 

12 cupcakes

Preparation Method

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