This recipe altered very slightly from Spoonful of Flavor. I added more cinnamon (1/2 teaspoon to her 1/4 teaspoon) because I prefer a stronger cinnamon flavor, but the original recipe is equally delicious (and my husband preferred hers!).
Please note that this recipe calls for most ingredients to be room temperature. Account for that in your preparation time -- these can't be made last-minute. I highly recommend pre-measuring all of your ingredients so you don't have to stop while baking.
*Make sure you don't over-mix the frosting, or mix on high, or the frosting can separate, leaving it thin and watery.
These cupcakes need to be chilled, but served at room temperature (I took them out of the refrigerator 45 minutes before serving).