2 Tablespoons heavy cream
1-2 cups powdered sugar
1 teaspoon vanilla extract
In a standing mixer fitted with a dough hook, mix 4 cups of the flour, the sugar, yeast, and 1 1/4 teaspoons salt. With the mixer on low speed, add the buttermilk mixture and mix until the dough comes together, about 2 minutes.
Increase the speed to medium-low and knead until the dough is smooth and elastic, about 10 minutes. If, after 5 minutes, more flour is needed, add the remaining 1/4 cup flour, 1 tablespoon at a time, until the dough clears the side of the bowl but sticks to the bottom.
Turn the dough out onto a clean counter and knead by hand to form a smooth, round ball, about 1 minute. Put the dough in a lightly oiled bowl and wrap tightly with plastic wrap. Let rise in a warm place until doubled in size, 2 to 2 1/2 hours.
Mix the brown sugar, cinnamon, cloves, and a pinch of salt together in a small bowl. Turn the risen dough out onto a lightly floured counter and press it into a 12 by 16 inch rectangle. Brush the dough with 1 tablespoon butter and sprinkle the brown sugar mixture over, leaving a 3/4 inch border along the top edge. Press on the filling to make it adhere to the dough as best you can.
Roll one strip up as if you were making a regular cinnamon roll. When you get to the end, use another strip and continue rolling. When the dough spiral reaches about 6-inches in diameter, (3-4 strips-worth of spiraling) place it in the center of a lightly greased 12-inch cast-iron skillet. Continue spiraling dough strips around the middle. Wrap tightly with plastic wrap and let rise in a warm place until it has nearly doubled in size, 1 to 1 1/2 hours
(After wrapping the dish, you may refrigerate it for up to 16 hours. Before baking in step 7, let sit at room temperature until doubled in size 1 to 1 1/2 hours)