This recipe is for chocolate chiffon cupcakes. It calls for cake flour, baking powder, salt, hot water, cocoa powder, egg yolks, sugar, vegetable oil, vanilla extract, egg whites, and cream of tartar. The ingredients are mixed together and baked at 325 degrees F for 30 minutes or until a toothpick comes out clean. The cupcakes are then cooled completely before frosting.

1. Chocolate Chiffon Cupcake
Ingredients
4 ounces / 114 gms cake flour
1 1/2 teaspoons baking powder
1 teaspoon kosher salt
1/4 cup hot water
1 1/4 -ounce / 36 gms cocoa powder
5 large egg yolks
6 ounces sugar / 170 gms, divided
1/4 cup vegetable oil
1 teaspoon vanilla extract
4 large egg whites
1/2 teaspoon cream of tartar
Directions
Preheat oven to 325 degrees F.
Place paper liners into 2 (12-cup) muffin tins and set aside. If you prefer, set 12 ovenproof
coffee mugs on a half sheet pan and set aside.
In a medium mixing bowl whisk together the flour, baking powder and salt. Set aside.
Place the hot water and the cocoa powder into a small bowl and whisk to thoroughly combine.
Set aside. Place the egg yolks and 5 ounces of the sugar into the bowl of a stand mixer and
whisk on high for 2 minutes or until the mixture becomes pale yellow and 'ribbons' when lifted.
Add the cocoa mixture, vegetable oil and vanilla and whisk to combine. Add the dry
ingredients and whisk just to combine. Transfer the mixture to a mixing bowl while you whisk
the egg whites.
Place the egg whites and cream of tartar into a clean bowl and whisk on high using the whisk
attachment, until it becomes foamy. Decrease the speed to low and gradually add the
remaining ounce of sugar. Once the sugar has all been added, increase the speed back to
high and continue to beat until stiff peaks form, approximately 2 minutes.
Transfer 1/3 of the egg whites to the batter and whisk until well combined. Add the remaining
egg whites and fold in gently. Transfer batter into prepared muffin tins or coffee mugs, evenly
dividing the batter between the cups. Place both muffin tins on the middle rack of the oven or,
if using mugs, place all of them on a half sheet pan and set on the bottom rack of the oven.
Bake for 30 minutes, until a toothpick comes out clean or the cupcakes reach an internal
temperature of 205 to 210 degrees F. Remove from the oven to a cooling rack and allow to
cool completely before frosting.