Spray cookie sheets with the cooking spray. In a large bowl, place the yeast. In a 1-quart saucepan, heat the water over medium heat until warm and an instant-read thermometer reads 105°F to 115°F. Pour water over yeast; stir until yeast is dissolved. Stir in the sugar, 1 teaspoon salt, 1/4 cup oil and 1 cup of the flour. Beat with an electric mixer on medium speed until smooth. With a wooden spoon, stir in enough of the remaining flour, about 1/2 cup at a time, until dough is soft, leaves side of bowl and is easy to handle (dough maybe slightly sticky).