Butterscotch Bars

1 (12 ounce) package butterscotch morsels
1 cup chopped walnuts
1 cup crushed graham crackers
1/3 cup butter or margarine
1 teaspoon vanilla extract
8 ounces cream cheese
1 (14 ounce) can sweetened condensed milk
1 egg

Melt chips and butter over low heat. Add graham crackers and walnuts. Grease pan. Pat half of mixture into 13 x 9-inch cake pan.

Filling: Beat cream cheese to soft. Add egg, milk and vanilla extract. Beat and pour over base then put remaining base on top. Bake 25 to 30 minutes.