Chocolate Cookies

1.5 C white sugar
0.5 C vegetable oil
3 eggs
2 tsp vanilla
1 C white flour
0.75 C cocoa powder
1 tsp baking powder
1 tsp baking soda
0.5 C yogurt
2.25 C whole wheat pastry flour

Mix together sugar, oil, eggs, and vanilla.  Stir together white
flour, cocoa, and baking soda/powder, add to wet.  Add yogurt.  Add WW
pastry flour.  Drop by teaspoonfuls onto lightly greased cookie sheet,
bake for 15 minutes at 350F.