Place a 12-cup muffin tin on the middle rack in the oven and preheat the oven to 400 degrees F.
Add the eggs and granulated sugar to a blender jar and mix on medium speed until light yellow. Add the 1 cup warmed milk and blend. Add the flour, cinnamon, and salt and blend until smooth.
Use a pastry brush to grease the hot muffin tin generously with the melted butter. Add any remaining butter to the batter and pulse to blend. Pour the batter into the warmed muffin tin, filling the muffin cups about three-quarters full. Bake until the popovers are golden, about 20 minutes. (Do NOT open the oven door!) Turn off the oven, keep the oven door closed, and continue to bake the popovers until golden brown, 10 to 15 minutes.
Meanwhile, in a small bowl, whisk the cream cheese with the confectioners' sugar and the remaining 2 tablespoons milk until smooth. Remove the popovers from the oven. Use the tip of a paring knife to poke a tiny slit at the top of each popover (this will allow steam to escape, and will keep your popovers from getting soggy). Brush the popovers with the glaze and serve warm.
"Supermarket Healthy: Recipes & Know-How For Eating Well Without Spending a Lot" (c) Copyright 2014 by Melissa d'Arabian. Clarkson Potter/Publishers.