In a mixing bowl, combine sugar and oil; mix well. Add eggs, one at a time, beating well dry ingredients, gradually add to creamed mixture and mix well. Shape into 3/4 balls and roll in sugar. Place 2″ apart on ungreased baking sheets.

Bake at 350 degrees for 10 -15 minutes or until cookie springs back when touched lightly. Remove to wire racks to cool. Melt chips with shortening in a small saucepan over low heat. Dip cookies halfway, shake off excess. Place on waxed paper.