Dissolve the yeast in the warm water; add the 1 teaspoon sugar and let stand for 5 minutes.

Add the buttermilk, butter, eggs, ranch dressing mix, sugar, salt and 4 cups flour and beat until smooth. Add in enough flour to make the dough soft and ready to knead. Knead on a floured surface until smooth and elastic.

Place dough in a greased bowl and grease the top of the dough. Cover and let rise until doubled in size.

Punch dough down and divide into 4 portions. Roll the dough out in a 14 x 12 inch rectangle and roll up jelly-roll style, starting with the long side. Seal all seams and place seam side down on greased baking sheets. Make 5 shallow slashes across the top of each loaf. Cover and let rise until doubled in size.

Bake at 350 degrees F. for 20-25 minutes or until golden brown. Brush with melted butter and remove from baking sheets to cool.