In a large bowl, dissolve the yeast in the warm water.

Add the cooking oil and sugar and mix again; let it sit until the yeast begins to bubble, about 10 minutes.

Add the egg, salt, and enough flour to form a soft dough.

Turn out onto a floured surface and knead about 5 minutes.

Do not let the dough rise.

Divide the dough into 12 pieces and shape each into a ball for a hamburger bun or a log for a hot dog bun.

Place them 3 inches apart on greased cookie sheets.

Cover and let rest for 15 minutes.

Meanwhile, preheat the oven to 425°.

Bake for 8 to 12 minutes or until done and the tops are golden brown.

Cool on wire racks and then slice them in half lengthwise to serve.