Grease 9 x 13 inch pan. Mix 1 package Duncan Hines Butter yellow cake mix, 2 large eggs and 1 cup chopped pecans. Cake dough will be very stiff. Moisten hands and press evenly into pan. 12 ounces cream cheese, 1 box powdered sugar, 2 large eggs, 1 teaspoon vanilla. Mix well all ingredients and pour over the pressed cake mix. Bake at 325 to 350 degrees for 40-50 minutes until lightly browned. Center will be soft until thoroughly cooled. Watch edges so as not to get too browned.