These cupcakes were truly Ah-maz-ing!! They were a lot of work but completely worth it.
Recipe courtesy of Culinary Concoctions by Peabody
white cupcakes (recipe follows)
espresso chocolate mousse (recipe follows)
1/4 cup coffee or espresso
mascarpone frosting (recipe follows)
cocoa powder for dusting
1 ½ cups all-purpose flour
1 cup cake flour (you can use all-purpose if you need)
1 TBSP. baking powder
1 tsp salt
½ cup unsalted butter, at room temperature
¼ cup vegetable oil
1 ½ cups granulated sugar
1 tsp vanilla extract
1 cup whole milk
5 egg whites
Sift together flours, baking powder and salt in a medium bowl; set aside.
In a mixing bowl (if using a stand mixer use the paddle attachment), cream butter and sugar until light and fluffy, about 3 minutes.
Add vanilla extract and beat until incorporated.
In a liquid measuring cup, combing vegetable oil and milk.
Add flour mixture and milk/oil mixture alternatively to the mixing bowl. Beating on low speed after each addition.
Pour mixture into a large bowl. Scrape down to make sure you get all of the batter.
Clean out bowl and switch to whisk attachment.
Beat egg whites until stiff peaks form.
Fold 1/3 of the egg whites into the batter, to “lighten” the batter. Gently fold in the remaining egg whites.
Grease and lightly flour muffin pans. Fill each cup half full.
Bake at 375 degrees for 18 to 20 minutes or until done.
Cool on a wire rack.
Espresso Chocolate Mousse
2 cups chilled heavy cream
4 large egg yolks
4 TBSP sugar
2 tsp espresso powder
8 oz fine-quality semisweet chocolate, finely chopped
Heat ¾ cup cream in a 1-quart heavy saucepan until hot.
Whisk together yolks, sugar, espresso powder, and a pinch of salt in a metal bowl until combined well, then add hot cream in a slow stream, whisking until combined.
Transfer mixture to saucepan and cook over moderately low heat, stirring constantly, until it registers 160°F on thermometer. Pour custard through a fine-mesh sieve into a bowl.
Melt chocolate in a double boiler, stirring frequently. Whisk custard into chocolate until smooth, then cool.
Beat remaining 1 ¼ cups cream in a bowl with an electric mixer until it just holds stiff peaks. Whisk one fourth of cream into chocolate custard to lighten, then fold in remaining cream gently but thoroughly.
Mousse recipe adapted from Gourmet December 2002
2 cups heavy whipping cream
8 ounces Mascarpone cheese, at room temperature
1 ½ cups powdered sugar
Using and electric mixer, whip the cream until stiff peaks form.
In a mixing bowl, fold 2/3 cups of the whipped cream into the Mascarpone cheese, along with the powdered sugar.
Add remaining cream. Blend until cream is fully incorporated.
Place in refrigerator until ready to frost.
Using the cone method, fill cupcakes with Espresso Chocolate Mousse filling. Place top back on top of cupcakes. Brush top of cupcake with coffee or espresso. Go light on this as they are fresh cupcakes, and not hard like most ladyfingers. You don’t want to soak them.
Frost top with Mascarpone Frosting.
Sprinkle cocoa powder on top of cupcakes.
Just take note that you will have a lot of leftovers of the mousse and the frosting. To be honest, I didn't mind at all. Both were delicious to eat by themselves. I put the leftover mousse in ramekins and then I'd top them with the frosting. MMMMMMM! Yum! If you don't want so much leftover then halve the mousse recipe. As for the frosting, be generous when putting it on your cupcakes and then eat the rest :)