Preheat your oven to 325º F and line 24 muffin tins with paper liners.
In a medium bowl whisk together the flour, baking powder, and salt.
In a small bowl combine the hot water, cocoa powder, and instant coffee. Whisk to thoroughly combine.
Separate your eggs and put the egg yolks and five ounces of the sugar into the bowl of a stand mixer.
Whisk on high until the mixture becomes pale yellow, about two minutes.
Add the cocoa mixture, vegetable oil and vanilla and mix. Add the dry ingredients (flour, baking powder, salt) and whisk just to combine.
Set this coffee-chocolaty goodness aside.
Place the egg whites and cream of tartar into a clean bowl and whisk on high until it becomes foamy. Decrease the speed to low and slowly add the remaining ounce of sugar. Once it's all combined, increase the speed back to high and continue to beat until stiff peaks form, approximately two minutes.
Take about a third of the egg whites and add it to the chocolate batter, whisking it until well combined.
Add another third of the egg whites and mix gently but completely.
Add the remaining egg whites and gently fold them into the batter. (It's OK if there are white streaks in your batter. This is preferable to over-mixing the egg whites.)
You should have a super cream, fluffy batter.
Divide the batter evenly between the prepared muffin cups.
This task is made infinitely easier if you have a variety of sizes of dishers. They make almost any batter task easier and less messy.
Place the filled muffin tins on the middle rack of the oven and bake for 30 minutes, until a toothpick comes out clean. Remove from the oven to a cooling rack and allow to cool completely before frosting.
*Cake flour is important in when making a chiffon. But you probably don't have any on hand. No worries, it is easy enough to make a substitute. All you need is all-purpose flour and cornstarch.
Take one cup of all-purpose flour and remove two tablespoons. Take two tablespoons of cornstarch and add it to the all-purpose flour. Now sift it. And sift it again. And again. And again. And one more time. You have to make certain that the flour and corn starch are mixed together thoroughly and sifting it five times will help do just that.
Coffee Buttercream Icing
6 oz unsalted butter, room temperature
2 oz shortening
1 whole egg, room temperature
1 lb confectioners' sugar
1 Tbs milk, room temperature
1 Tbs instant coffee powder
1 tsp vanilla extract
In a small bowl combine the vanilla, milk and coffee powder. Set aside. Put the butter and shortening into the bowl of a stand mixer and, using the paddle attachment, cream on high until light and fluffy, approximately 4 minutes. Add the egg and beat until well combined, approximately 1 minute. Turn off the mixer and add 1/2 cup of the powdered sugar. Mix on low - unless you like powdered sugar all over your kitchen - until combined. Stop the mixer and scrape down the sides of the bowl. Repeat, adding powdered sugar 1/2 cup at a time, until all of it has been combined. Add the vanilla-coffee mixture and continue to beat until the icing is light and smooth, approximately 2 to 3 minutes.
If the icing is too thick you can add milk, a teaspoon at a time, to relax it a bit. If it is too liquid you can add more powdered sugar, a tablespoon at a time, to thicken it.
Now you get to ice your cupcakes.
I used a icing bag, but icing the cupcakes with an icing spatula will work just as well.
I added some sprinkles by putting some coffee beans and cocoa nibs in a hand mill and grinding them over the iced cupcakes.
These cupcakes are very light and delicate and full of flavour. The coffee-falvour is very evident, but not over-powering and these pair well with coffee (Go figure!) or tea.
Enjoy! And if you give these a try let me know how they turned out.