Maple Cupcakes with Toasted Marshmallow Frosting

Name: Maple Cupcakes with Toasted Marshmallow Frosting
Yield: 24 cupcakes
Ingredients: 3 cups all purpose flour; 3 teaspoons baking powder; 1 teaspoon salt; 1/2 cup (1 stick) butter, slightly softened, cut into pads; 2 tablespoons vegetable shortening, at room temperature; 2 cups pure maple syrup (do NOT use imitation here); 3 egg yolks; 1 large egg; 1 1/2 cups whole milk; 1 cup walnuts, toasted and coarsely chopped; 8 egg whites; 2 cups sugar; 1/2 teaspoon cream of tartar; 2 teaspoons vanilla extract

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Servings
24 cupcakes

Maple Cupcakes with Toasted Marshmallow Frosting

Orion Moreno

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Adapted from Baked Explorations and Martha.

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Ingredients

Servings

For the cupcakes:

3 cups all purpose flour
3 teaspoons baking powder
1 teaspoon salt
1/2 cup (1 stick) butter, slightly softened, cut into pads
2 tablespoons vegetable shortening, at room temperature
2 cups pure maple syrup (do NOT use imitation here)
3 egg yolks
1 large egg
1 1/2 cups whole milk
1 cup walnuts, toasted and coarsely chopped

For the frosting:

8 egg whites
2 cups sugar
1/2 teaspoon cream of tartar
2 teaspoons vanilla extract

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Instructions

Preheat oven to 325°F and set a rack in the middle of the oven. Line 2 12-cup cupcake pans with paper liners.
Sift together flour, baking powder and salt into a medium bowl and set aside. Add butter and shortening to the bowl of a stand mixer fitted with the paddle attachment. Beat on medium speed until well-combined and fluffy (1 - 2 minutes). Turn the mixer to low, and slowly pour in maple syrup. Increase speed to medium-high and beat for 3 minutes. The mixture will look a bit chunky - that's ok.
Reduce the speed to low and add the eggs (yolks and whole) one at a time. Wait until the egg is fully mixed in before adding the next. Turn the mixer off, scrape down the sides and add half of the flour mixture. Beat on low until just incorporated. Stream in all of the milk, then turn the mixer off again. Add the remaining flour mixture, and beat on low until just combined. Don't over-mix here!
Take the bowl from the mixer, scrape down the sides, and gently fold in chopped walnuts. Scoop the batter into the prepared cupcake liners. You'll want to fill them 3/4 of the way full. Bake for 20 to 25 minutes (one pan at a time) until an inserted toothpick comes out clean. Let the cupcakes cool for 15 minutes before frosting.
To make the frosting, combine egg whites, sugar and cream of tartar in the bowl of a stand mixer. Set the bowl over a medium saucepan filled with simmering water. The water should not touch the bottom of the bowl. Whisk until the sugar dissolves into the egg whites and the mixture looks frothy ( 3 to 4 minutes).
Transfer the bowl a stand mixer fitted with the whisk attachment. Beat for 5 - 7 minutes until stiff, glossy peaks form. You'll want to start on a low speed and gradually work your way to high. Add vanilla extract and whisk until fully incorporated (just a few moments more).
Using a piping bag, swirl the frosting on to the cooled cupcakes. Fire up a blow torch and lightly caramelize the swirls. Store cupcakes covered at room temperature for up to 3 days.