3/4 cup firmly packed brown sugar
1/2 cup sugar
1 cup butter, softened
2 eggs
1 teaspoon vanilla
2 1/3 cups all-purpose flour
1 teaspoon baking soda
1/2 teaspoon salt
2 (1 ounce) squares semi-sweet baking chocolate, melted, cooled
Heat oven to 350.
In a large mixer bowl combine brown sugar, sugar, and butter. Beat at medium speed, scraping bowl often, until creamy (1 to 2 minutes).
Add eggs and vanilla; continue beating until well mixed (1 to 2 minutes).
Reduce speed to low; add flour, baking soda, and salt. Beat, scraping bowl often, until well mixed (1 to 2 minutes).
Pour cooled chocolate over cookie dough and swirl with knife just enough to create a marbled effect. Do not over-mix.
Drop by rounded teaspoonfuls 2 inches apart onto ungreased cookie sheets.
Bake for 11 to 13 minutes or until lightly browned.
Let stand 1 minute; remove from cookie sheets.
Serve.
