1 cup butter, softened
1 cup vegetable shortening
1-1/2 cups sugar
1-1/2 cups firmly packed brown sugar
2 teaspoons vanilla extract
4 large eggs
5-1/2 cups all-purpose flour
2 teaspoons baking soda
2 (12-ounce) packages or 4 cups semisweet chocolate chips
2 cups chopped nuts, optional
Preheat oven to 350°F.
In a bowl cream together butter, shortening, sugar, brown sugar and vanilla with an electric mixer on medium speed. Stir in eggs; beat until thoroughly combined. Add flour and baking soda; mix well. Fold in chocolate chips and nuts.
Drop dough by teaspoonfuls 2 inches apart onto ungreased baking sheets. Bake for 10 to 12 minutes or until golden brown. Let cool slightly on baking sheet before transferring to a wire rack.
Makes 60 cookies.