PREHEAT oven to 325º F. Grease 9-inch square baking pan.
COMBINE flour, baking soda and salt in small bowl.
HEAT shortening, sugar and water in medium saucepan to boiling, stirring constantly. Remove from heat. Stir in 1 cup morsels; stir until smooth.
ADD eggs one at a time, beating well after each addition. Gradually add in flour mixture. Stir in remaining morsels. Spread into prepared baking pan.
BAKE for 30 to 35 minutes or until wooden pick inserted in center comes out slightly sticky. Cool completely in pan on wire rack; cut into squares.