1 cup butter, softened
4 eggs
1 cup packed light brown sugar
1/4 cup shortening
1 tablespoon vanilla extract
1 1/2 teaspoons milk
1 1/2 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 cup semisweet chocolate chips
Preheat the oven to 350 degrees F (175 degrees C). Grease cookie sheets.
In a medium bowl, cream together the butter, eggs, brown sugar, shortening, vanilla, milk and flour. Beat in the shortening, and mix in the flour mixture. Stir in the chocolate chips. Drop by rounded spoonfuls onto the prepared cookie sheets.
Bake for 8 to 10 minutes in the preheated oven, or until light brown. Allow cookies to cool on baking sheet for 5 minutes before removing to a wire rack to cool completely.