Grease and flour 9 x 13 pan. Combine sugar and butter in a large bowl of an electric mixer. Beat together until mixutre is uniform and creamy. Beat in eggs and vanilla. In a small saucepan over very low heat, melt 1 cup of chocolate chips stirring occasionally. Beat chocolate into butter mixture. Mix in flour, oats, and baking powder. Stir in remaining chocolate chips and pecans. The mixture will be very thick and hard to spread, so spoon it into the pan in evenly spaced dollops, then spread out evenly. Bake in a preheated 350 degree oven for 25 to 30 minutes or until a toothpick inserted into the middle comes out clean. Let cool completely.

Per serving: 4672 Calories; 257g Fat (47% calories from fat); 58g Protein; 597g Carbohydrate; 688mg Cholesterol; 1750mg Sodium