6 Cups flour
1/2 Cup sugar
2 teaspoons salt
1 Cup buttermilk
1 1/4 Cups orange juice
3 teaspoons dry yeast (1/4 ounces ea)
2 Tablespoons honey
1/2 Cup salted butter; room temperature
3 Tablespoons corn syrup
1/4 Cup ground cinnamon
1 1/2 Cups salted butter; room temperature
6 Tablespoon sugar
1 Tablespoon flour
2 Cups powdered sugar
1 Tablespoon vanilla extract
1/4 Cup water
Bun Dough: Mix flour, sugar and salt in large mixing bowl, using fork to distribute evenly. Set aside. Pour buttermilk and orange juice into saucepan and whisk over low heat until lukewarm. Sprinkle yeast over liquid and stir to dissolve.
Pour liquid onto flour in mixing bowl and add honey and butter. Mix and massage everything with both hands until all dry ingredients are absorbed into dough.
Dough will be somewhat lumpy and uneven.
Place dough on floured board and knead with heel of hand until somewhat smooth and elastic, 10 to 15 minutes. (Warning: If dough is completely smooth, it has been overworked.)
Place dough in clean, lightly greased bowl. Cover with clean dish cloth and let rise in warm, draft-free area until doubled in bulk, about 1 hour. (Instead of the one-hour first rise called for in the recipe, the dough can be allowed to make its first rise in the refrigerator overnight. This will save time in the morning if you plan on eating the cinnamon buns for breakfast or brunch.
Because the dough will be cold, it will be firmer and easier to work with the next day, but the second rise will take longer, sometimes two or three times longer. Important: The butter should always be very soft.)
Cinnamon Filling: Place corn syrup, cinnamon, butter, sugar and flour in bowl and whisk until well blended. (If you make filling the day before you’re going to bake, do not refrigerate overnight. Cover and leave on counter until needed.)
Sugar Icing: Put sugar, vanilla extract and water in bowl and whisk vigorously until mixture is free of lumps.
Assembly: Flour work surface generously and rolling pin lightly. Divide Bun Dough in half. Roll first 1/2 into rectangle 1/2-inch thick, as evenly as you can. It should be about 10 by 12 inches. with spatula or clean hands, spread 1/2 of Cinnamon Filling over surface of dough rectangle, stopping 1/2 inch from edge of one long side.
Starting from opposite long side, roll dough up, snugly but not so tightly that you push filling out. When rolled completely, pinch 1/2-inch edge that is free of filling onto rest of length of roll to create sturdy seam. with sharp serrated knife, cut roll crosswise into buns 1 1/2 inches thick, using sawing motion to avoid pressing down on roll.
Place buns on baking pan lightly greased with butter 1 to 1 1/2 inches from each other. Repeat with remaining Dough and Filling.
Cover buns and let rise until puffy and half again as large, about 1 hour. They should spring back from a light touch. About 45 minutes into this second proofing, preheat oven to 350 degrees. Uncover baking pans and set in oven to bake at 350 degrees until slightly firm and light golden brown, about 15 minutes.
Check to see that buns are cooked through to center, but if buns are too brown, they will develop an undesirable crust. Cool until warm to the touch and drizzle with generous amount of Sugar Icing.