Categories: Dessert
Ingredients
- For the Cupcakes:
- 1 cup cake flour (not self-rising)
- 2 tbsp. unsweetened cocoa powder
- 1/2 tsp baking soda
- 1/4 tsp salt
- 3/4 cup sugar
- 1/2 cup milk
- 1/2 cup vegetable oil
- 1 large egg
- 1 tbsp. distilled white vinegar
- 1 tsp pure vanilla extract
- 1/2 tsp green gel food coloring
- For the Frosting:
- 2 oz. white chocolate, chopped
- 3 large egg whites, at room temp
- 3/4 cup sugar
- 1/4 tsp salt
- Pinch of cream of tartar
- 2 sticks unsalted butter, cut into pieces, at room temp
- 1 tsp pure vanilla extract
- Assorted green sprinkles, for decorating
Directions
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Make the cupcakes: Preheat the oven to 350. Line a 12-cup muffin pan with paper liners. Sift the cake flour, cocoa powder, baking soda and salt into a large bowl. Whisk the sugar, milk, vegetable oil, egg, vinegar, and vanilla in a separate large bowl. Whisk in the flour mixture until smooth. Add the green food coloring and stir until combined.
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Divide the batter among the prepared muffin cups, filling them three-quarters of the way. Bake until a toothpick inserted into the centers comes out clean, about 15 minutes. Let cool slightly in the pan, then remove to a rack to cool completely.
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Meanwhile, make the frosting: Put the white chocolate in a small heatproof bowl set over a saucepan of simmering water. Cook, stirring, until melted; remove the bowl from the pan and let cool slightly. Reserve the pan of simmering water.
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Whisk the egg whites, sugar, salt and cream of tartar in a large heatproof bowl set over the pan of simmering water. Cook, whisking, until the sugar dissolves and the mixture registers 130 on a candy thermometer, 3-5 minutes. Remove the bowl from the pan; beat with a mixer on high speed until stiff peaks form, 1 to 2 minutes. Reduce the mixer speed to medium and beat until the bowl is no longer warm, 1 to 2 more minutes.
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Increase the mixer speed to medium high and continue beating, add the butter one piece at a time, until thick and combined. (The mixture might separate, but keep beating and it will smooth out.) Add the melted white chocolate and vanilla and continue beating until just combined.
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Transfer the frosting to a Ziploc bag and snip a corner. Pipe onto the cupcakes and decorate with green sprinkles