Sunshine Dream Bars

1 cup sifted all-purpose flour
2/3 cup sugar
1 tbsp grated lemon rind
1/4 cup butter
1 8 oz package cream cheese
2 eggs 2 tbsp lemon juice

Sift the flour with 1/3 cup sugar into a bowl and stir in 2 teaspoons lemon rind. Cut in the butter and 1/4 cup cream cheese until particles are fine. Press into well-greased 9 x 13-inch shallow baking pan. Bake at 350 degrees for 12 to 15 minutes or until golden brown. Cream remaining cream cheese with remaining sugar in a bowl until smooth. Blend in eggs, one at a time. Blend in remaining lemon ring and lemon juice and spread over baked mixture.

Note, this is the original recipe which specifies raw egg. Wonder what could be done instead?