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["Generously butter a 9 x 13"" pan, glass or metal, I prefer glass.", "Prepare mashed potatoes and potato water: grate potatoes and place in saucepan with 1 1/2 c water. Bring to boil, and let simmer for about 15 or 20 minutes, until potatoes are soft enough to run through a sieve. Be sure to reserve water; it should be thick and starchy.", "Warm buttermilk to 110-115. It will separate, but don't worry about it. Whisk it with a fork and dissolve yeast in warmed buttermilk. Let proof for 5 minutes.", "Add soft butter, sugar, salt, mashed potatoes, barley malt and vanilla to buttermilk and yeast mixture.", "When potato water has cooled to 110-115, stir it into yeast mixture. Add barley or whole wheat flour and about 2 c white flour. A bit at a time, add enough flour to make a stiff dough (this can be done by hand or with a dough hook on a stand mixer). Knead well, by hand or machine.", "Dust with flour, cover with a towel, and set aside while you prepare your topping & cinnamon swirl.", "Place ingredients from corn syrup to vanilla in a saucepan. Bring to a boil over medium heat and boil for 1 minute.", "Pour into prepared baking pan, and sprinkle pecans evenly over pan. It may seem like a lot of topping, but that's good.", "Make cinnamon sugar by mixing sugar with cinnamon.", "Make the rolls: