Cinnamon Swirl Buns

Makes 30 buns

cooking spray Buns: ¾ cup warm (105-110°F) milk 4 teaspoons active dry yeast ¾ cup granulated sugar ½ cup sour cream, at room temperature ½ cup unsalted butter, at room temperature 4 large eggs, at room temperature 1 teaspoon salt 8 cups unbleached, all-purpose flour, divided 2⅓ cup packed brown sugar ⅓ cup granulated sugar 3 tablespoons cinnamon 6 tablespoons unsalted butter, at room temperature, very soft Cream Cheese Frosting (makes 2 cups): 6 ounces low-fat cream cheese, at room temperature 6 tablespoons unsalted butter, at room temperature 1 tablespoon milk 2 teaspoons pure vanilla extract 1½ cups powdered sugar, sifted

Place warm milk and yeast in Cuisinart mixing bowl with a pinch of the sugar and stir. Let stand until foamy, about 5 to 10 minutes. Insert the flat mixing paddle. Add the remaining sugar, sour cream, butter, and eggs. Mix on speed 1 for 1 minute. Add salt and 3 cups of the flour. Mix on speed 1 until smooth, 1 to 2 minutes. Scrape the bowl and paddle. Remove the flat mixing paddle and insert the dough hook. Remove and reserve ½ cup of remaining flour. While mixing on speed 2 add the larger portion of flour, ⅓ cup at a time, allowing the flour to be almost totally incorporated before each addition. If dough is too sticky or does not form a "loose" ball that cleans the sides of the bowl, add enough of the remaining flour, 1 tablespoon at a time until it does. With the mixer on speed 3, set the timer for 8 minutes to knead the dough. Transfer to a large bowl and cover with plastic wrap. Place in a warm, draft-free place and let rise until doubled in volume, about 60 to 90 minutes. Place the brown sugar, granulated sugar and cinnamon in a small bowl and stir to combine. Punch dough down to deflate. Divide the dough into 2 equal pieces and let rest 10 minutes before continuing. Lightly coat two 13x9x2-inch baking pans with cooking spray. Flatten each portion of dough into rectangles about 20 inches long and 10 inches wide. Spread each with softened butter within ½ inch of one long side and to the edge of all the others. Sprinkle each evenly with half the sugar/cinnamon mixture. Roll as for a jelly roll, ending with the unbuttered side. Pinch along long side to seal. Cut each with a serrated knife into 15 equal portions. Arrange 15 cinnamon buns in each of the two prepared pans. Cover with plastic wrap and let rise until nearly doubled in volume. Fifteen minutes before baking, preheat oven to 350°F. Bake Cinnamon Swirl Buns for 25 to 35 minutes, until puffed with golden tops, and hollow sounding when tapped. While baking, place the cream cheese and butter in the Cuisinart mixing bowl. Insert the flat mixing paddle, and whip the cream cheese and butter on speed 8 until smooth, creamy and fluffy, about 1 minute. Scrape the bowl and whisk. Add vanilla and milk and whisk on speed 8 until blended. Add half the powdered sugar. Stir on speed 1 until sugar is incorporated. Add remaining powdered sugar and stir on speed 1 until incorporated. Mix on speed 8 for 1 minute until light and fluffy. Spread about 1 tablespoon of Cream Cheese Frosting on each warm Cinnamon Swirl Bun. There will be a little extra frosting for those who like more. Serve. Note: If you wish to have warm, fresh Cinnamon Swirl Buns in the morning, dough may be mixed, allowed to have its first rise, and shaped the night before. If doing the night before, place covered pans in the refrigerator to rise. Remove from refrigerator and let stand at room temperature one hour before baking. If you wish to freeze Cinnamon Swirl Buns after baking, do not frost. Re-warm in a conventional oven (microwaving is not recommended) and frost before serving.