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.

Heat oven to 350°F. Grease cookie sheet or line with silicon mat.

Drop dough by tablespoonfuls into powdered sugar; roll around to coat and shape into balls. Place about 2 inches apart on cookie sheets.

Bake 12-15 minutes or until almost no imprint remains when touched lightly in center. Immediately remove from cookie sheets to cooling racks.