In a large bowl, dissolve yeast in warm water. Add oil and sugar; let stand for 5 minutes. Add the egg, salt and enough flour to form a soft dough.
Turn onto a floured surface; knead until smooth and elastic, about 3-5 minutes. Do not let rise. Divide into 12 pieces; shape each into a ball. Place 3 in. apart on greased baking sheets.
Cover and let rest for 10 minutes. Bake at 425° for 8-12 minutes or until golden brown. Remove from pans to wire racks to cool. Yield: 1 dozen.
Read more: http://www.tasteofhome.com/recipes/40-minute-hamburger-buns#ixzz3LfK71sLk