Created by TiaMia on June 1, 2014
Step 1: Dissolve the yeast in the warm water in a medium bowl; set aside until foamy, about 5 minutes. Stir the buttermilk and honey into the yeast mixture; set aside.
Step 2: Stir together the flour and salt in the bowl of a stand mixer fitted with a dough hook, make a well in the center of the dry ingredients, pour in the yeast mixture, and mix on low speed until evenly incorporated, about 2 minutes.
Step 3: Increase the mixer speed to medium low and add the measured unsalted butter, a few pieces at a time, letting it completely incorporate before adding more. Mix the dough until smooth, elastic, and slightly soft, about 10 minutes total.
Step 4: Coat a large bowl with unsalted butter, place the dough in the bowl, and turn to coat. Cover with a damp kitchen towel and let rise in a warm place until doubled in size, about 1 hour.
Step 5: Meanwhile, brush a 13-by-9-inch baking dish with unsalted butter.
Step 6: Once the dough has risen, divide it into 2 equal pieces. On a lightly floured surface, roll out 1 piece into a 12-by-10-inch rectangle, keeping the second piece covered with a towel.
Step 7: Cut the rolled rectangle of dough lengthwise into 5 strips. Cut each strip into 3 smaller rectangles. Reserve 2 tablespoons of the melted butter. Spread a heaping 1/2 teaspoon of the remaining butter on a rectangle, fold the rectangle in half, and set aside. Repeat with the remaining rectangles. Repeat the entire process with the second piece of dough.
Step 8: Arrange the rolls seam-side down in the prepared baking dish, 6 across and 5 down. Cover with a clean kitchen towel and let rise in a warm place until doubled in size, about 1 hour.
Step 9: Meanwhile, heat the oven to 350°F and arrange a rack in the lower third.
Step 10: Once the dough has risen, brush the reserved 2 tablespoons of melted butter over the top of the rolls and sprinkle with coarse salt.
Step 11: Bake until the bottoms and tops of the rolls are golden brown, about 40 minutes. Remove from the oven, let cool 5 minutes, and serve.