-----FOR THE TOPPING-----
   1       tb           Flour
     1/2   c            Brown sugar, packed
   2       tb           Butter, softened
     1/2   c            Mini chocolate chips
                        -----FOR THE CAKE-----
   2       c            Flour
   1       t            Baking powder
   1       t            Baking soda
   1 1/2   c            Mini chocolate chips
     1/2   ts           Salt
     1/2   c            Butter, softened
   1       c            Sugar
   1       t            Vanilla
   3                    Eggs
   1       c            Sour cream
  For the topping: In a small bowl, combine the topping
  ingredients (1/2 cup of chocolate chips). Mix well,
  set aside. For the cake: Combine flour, baking powder
  and soda and salt. In a large bowl, cream butter,
  sugar and vanilla. Beat until creamy. Add eggs, one at
  a time, beating well after each addition. Gradually
  mix in flour mixture, alternately with sour cream.
  Fold in remaining chocolate chips. Spread mixture in a
  greased 9 x 13 inch baking pan. Sprinkle topping mix
  over batter in pan. Bake at 350 deg f for 45 - 50
  minutes or until a toothpick inserted in the middle
  comes out clean. Cool completely in pan, then cut and
  serve. Makes 24 serving. Each serving C202 calories,
  9 g fat, 3 g protein, 27.5 g carbs, 240 mg sodium.
  Percent of calories from fat C40%