Chocolate Crinkle Cookies

2 c. granulated sugar
3/4 c. vegetable oil
3/4 c. cocoa
4 eggs
2 tsp. vanilla
2 1/3 c. flour
2 tsp. baking powder
1/2 tsp. salt
Powdered sugar

In large mixer bowl, stir together granulated sugar and oil. Add cocoa, blend well. Beat in eggs and vanilla. Stir together flour, baking powder, and salt. Add to cocoa mixture, blend well. Cover. Refrigerate until dough is firm enough to handle, at least 6 hours. Shape dough into one-inch balls. Roll in powdered sugar. Place about 2 inches apart on greased cookie sheet. Bake at 350 degrees for 12 to 14 minutes or until almost no indentations remain when touched lightly and tops are cracked. Remove from sheet onto wire rack. Let cool. Makes about 4 dozen.