Pineapple Chocolate Chip Cookies

Ingredients
1 cup shortening
1 cup sugar
1 cup packed brown sugar
2 eggs
2 (8 ounce) cans crushed pineapple, drained
2 teaspoons vanilla extract
4 cups all-purpose flour
2 teaspoons baking soda
2 teaspoons baking powder
1/2 teaspoon salt
1 cup semisweet chocolate chips
1 cup chopped walnuts

Directions
In a mixing bowl, cream shortening and sugars. Add eggs, one at a time, beating well after each addition. Beat in pineapple and vanilla. Combine the flour, baking soda, baking powder and salt; gradually add to creamed mixture. Stir in chocolate chops and walnuts if desired.
Drop by rounded tablespoonfuls 2 in. apart onto greased baking sheets. Press down lightly. Bake at 190 degrees C for 10-12 minutes or until lightly browned. Remove to wire racks to cool.