c("Heat oven to 350 degrees Fahrenheit.", "Spray cookie sheets with nonstick cooking spray.", "In  medium bowl, combine flour, cocoa and baking powder; mix well.", "In large bowl, combine sugar, brown sugar and butter; beat until blended.", "Add eggs; beat well.", "Add flour mixture; mix well.", "Stir in vanilla chips.", "With sprayed hands, shape dough into three 7\" rolls.", "Place rolls 3\" apart on sprayed cookie sheet; flatten  each to 7\" x 3\" rectangle.", "Bake at 350 degrees Fahrenheit for 22 to 28 minutes or until set and light  golden brown.", 
"Remove from cookie sheet; place on wire racks.", "Cool 5 minutes.", "With serrated knife, cut rectangles into 1/2\" slices.", "Arrange slices, cut side up, on  ungreased cookie sheet.", "Bake at 350 degrees Fahrenheit for 6 to 8 minutes or until top surface is  slightly dry.", "Turn cookies over; bake an additional 6 to 8 minutes or until top surface is slightly dry.", "Remove from cookie sheets; cool 15 minutes or until  completely cooled.", "Store in tightly covered container.", "NOTES : Ingredient substitution: Use semi-sweet or milk chocolate chips in  place of the vanilla chips."
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