How to Make It
Make the dough: In the bowl of a stand mixer fitted with the dough hook attachment, add the warm milk and 1 tablespoon of the sugar. Sprinkle the yeast over the milk and let bloom until foamy, 10 minutes.
Add the remaining sugar and 2 of the eggs and mix until incorporated, followed by the flour and salt. Mix until a smooth dough forms. Cover with plastic wrap and let sit in a warm place until doubled in size, 1 hour.
Meanwhile, make the filling: In a medium bowl, combine the filling ingredients and mix until well incorporated. Set aside.
Once the dough has proofed, transfer to a floured work surface and roll into a 15-by-18-inch rectangle. Using an offset spatula, spread the filling in an even layer over the entire dough.
With a pizza cutter or knife, cut the dough horizontally into 4 even strips. Starting with the strip closest to you, tightly roll from left to right. Once rolled, move to the left side of the following strip of dough and continue to roll, make sure any end pieces are tightly tucked. Continue until all the strips are used and you have one large cinnamon roll.
Place in a 9-inch springform pan and let proof in a warm place for another 30 minutes. Preheat the oven to 325°F. Once proofed, the roll should have expanded to nearly fill the pan.
Beat the remaining egg and brush over the cinnamon roll. Place the pan on a baking sheet and loosen the fasten of the springform to form a larger ring around the cinnamon roll (this will allow for the dough to expand). Bake, turning halfway through, until golden and an internal temperature of 190°F is reached, 1 hour and 10 minutes to 1 hour and 15 minutes. (If the cinnamon roll begins to get too dark, cover with foil.)
Meanwhile, make the glaze: In a small saucepan, combine all the ingredients over medium heat. Whisk until smooth and the sugar has dissolved, 3 to 4 minutes. Keep warm.
When the cinnamon roll comes out of the oven, let cool for 5 minutes, then remove the springform ring and transfer to a platter. Drizzle liberally with the glaze, then slice and serve.