Preheat oven to 325 degrees.
In a double boiler, set over simmering water, melt the 4 ounces of chocolate.
In a large bowl, add flour, cocoa, baking soda, and salt. Whisk together.
In another bowl, cream the softened butter and both the sugars until light and fluffy. Add the melted chocolate and stir well. Beat in the egg and vanilla. Then fold in the chocolate chips
Scoop out 12 equal portions of the dough and place on a Silpat lined baking sheet. Do not flatten dough scoops. They will flatten and spread as they bake. ( I placed 6 globs per baking sheet. )
Bake 18 minutes or until tester inserted into the center of a cookie comes out semi-clean and not overly wet with batter.
Allow to cool for 4-5 minutes, then transfer cookies to a cooling rack. YUM