Instructions

  1. Preheat oven to 350°F.
  2. Cream together butter and sugars until creamy.
  3. Add egg and vanilla; blend well.
  4. In another bowl combine flour, cornstarch and baking soda.
  5. Add to butter mixture and then add chocolate chunks.
  6. Drop by tablespoons onto a greased baking sheet and bake for 8-10 minutes, until golden brown around the edges.