Now I can say proudly that I've made macarons and even saw the "feet" on my first and second attempts. The second batch didn't come out as well as the first one, but they tasted much better. While both batches didn't come out perfectly, they were good enough for my first and second attempts. I have posted some process photos below for the chocolate macarons:
CHALLENGE AFTERTHOUGHTS: I don't regret participating in this month's challenge; it was a good experience, and I can now say I've made macarons. I doubt I'll ever make them again, even though the cinnamon roll macarons were very good. I have a bunch of them sitting in my freezer, and I plan to give them away to my students on Monday.
*UPDATE* I gave them away today and my students and colleagues LOVED both varieties. Some came back for seconds. I got rid of them all very quickly. I was surprised at how no one had heard of macarons, especially my colleagues who have traveled to Western Europe many of times.
1 cup sugar
1/3 cup water
2 large eggs
3 sticks (1 1/2 cups) unsalted butter, softened
3 tablespoons instant espresso powder dissolved in 1 tablespoon hot water (I used instant coffee)
In a small heavy saucepan set over medium heat, dissolve the sugar in the water. While stirring bring the mixture to a boil, stop stirring, and continue to cook until it registers 235-240°F on a candy thermometer.
In the bowl of a stand mixer with the whisk attachment or with a hand held beater beat the eggs until they are frothy. Add the sugar syrup in a thin stream, beating, and beat the mixture until it is cool. (The mixture should change to a pale white, thick mixture. You will be have to beat the mixture for 5-10 minutes in order to reach that point.)
Change to the paddle attachment and add in the room-temperature butter, 1 tablespoon at a time, the espresso or coffee mixture, and beat the buttercream until it is combined well. Leave at room temperature so it will be easier to spread.
1 (3 ounce) package cream cheese, softened
1/4 cup butter, softened
1 1/2 cups confectioners' or icing sugar
1/2 teaspoon vanilla extract
1/8 teaspoon salt
Beat together cream cheese and butter. Add the confectioners' sugar, vanilla extract and salt.