1. In large bowl, mix oil, chocolate, granulated sugar and vanilla. Stir in eggs, one at a time. Stir in flour, baking powder and salt. Cover; refrigerate at least 3 hours.
2. Heat oven to 350 degrees. Grease cookie sheet with shortening or cooking spray.
3. Drop dough by teaspoonfuls into powdered sugar; roll around to coat and shape into balls. Place about 2 inches apart on cookie sheets.
4. Bake 10 to 12 minutes or until almost no imprint remains when touched lightly in center. Immediately remove from cookie sheets to cooling racks.
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