Chocolate Raspberry Crumb Bars
["1 c. butter, softened", "2 c. all-purpose flour", "1/2 c. packed light brown sugar", "1/4 tsp. salt", "2 c. (12 oz. pkg.) semi-sweet chocolate chips, divided", "1 1/4 c. (14 oz. can) sweetened condensed milk", "1/2 c. chopped nuts (optional)", "1/3 c. seedless raspberry jam"]
["Preheat oven to 350\u00b0.", "Beat butter in large mixer bowl until creamy.", "Beat in flour, sugar and salt until all mixed.", "With floured fingers, press 1 3/4 cups crumb mixture onto bottom of greased 13 x 9-inch baking pan; reserve remaining mixture.", "Bake for 10 to 12 minutes or until edges are golden brown."]
["butter", "flour", "brown sugar", "salt", "semi-sweet chocolate chips", "condensed milk", "nuts", "seedless raspberry jam"]