Preheat oven to 350°F. Lightly grease 9"spring form pan.

For Crust: Beat butter and sugar in small mixer bowl until creamy. Beat in flour, egg yolk and salt. Press mixture into bottom and 1"up side of prepared pan.

Bake for 14 to 16 minutes are until crest is set.

For cheesecake: Microwave morsels and cream in medium uncovered bowl on medium high power(70%) for 1 minute. Stir. Morsels may retain some of their original shape if necessary microwave an additional 10 to 15 second intervals stirring until smooth.

Beat cream cheese, lemon juice, lemon peel, and salt in large mixer bowl until smooth. Gradually beat in melted morsels. Beat in egg whites and egg. Pour into crust.

Bake for 35 to 40 minutes or until edge is lightly browned. Run knife around edge of cheesecake. Cool completely on wire rack. Refrigerator for several hours overnight. Remove side of springform pan garnish as desired.