Instructions: PREHEAT oven to 350

BEAT butter in a large mixing bowl until creamy. Beat in flour, sugar and salt until crumbly. With floured fingers, press 2 cups crumb mixture onto bottom of greased 13 x 9-inch baking pan; reserve remaining mixture. Bake at 350 for 10 to 12 minutes or until edges are golden brown.

WARM 1-1/2 cups morsels and sweetened condensed milk in small, heavy saucepan over low heat, stirring until smooth. Stir in vanilla. Spread over hot crust.

STIR walnuts and remaining morsels into reserved crumb mixture; sprinkle over chocolate filling.

Bake in 350 oven for 25 to 30 minutes or until center is set. Cool in pan on wire rack.

Makes about 2-1/2 dozen bars.

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