In a large mixing bowl combine oats, brown sugar, butter and salt. Add boiling water and stir. Cool to 100-115 degrees.
Add two cups of flour and yeast to oat mixture. Beat until smooth. Stir in enough remaining flour to form a soft dough.
Turn onto a floured surface and knead until smooth and elastic, about 5-7 minutes. Place in a greased bowl, turning once to grease top. Cover and let rise in a warm place until doubled, about one hour.
Punch dough down. Turn onto lightly floured surface. Using a bench knife, divide dough into 20 equal-sized pieces. Form into round rolls by gently stretching each piece under to form a smooth top. Then pinch bottom together to seal. Place formed balls in a greased 13 x 9 inch baking pan. Cover and let rise until doubled, about 30 minutes.
Bake in preheated 350 degree oven for 30-35 minutes until golden brown. Smooth butter over warm rolls. Serves 20.
*Unless otherwise indicated, all butter used on this recipe site is salted.