Top Layer: 1 package (8 oz.) cream cheese, softened 1/4 cup granulated sugar 1 egg 2 tablespoons milk 1 teaspoon vanilla 1/2 teaspoon grated lemon zest 1 tablespoon fresh lemon juice 2 tablespoons finely chopped walnuts Position rack in center of oven. Preheat oven to moderate (350°). Butter 8 x 8 x 2-inch-square pan. Prepare Bottom Layer: Beat together butter and brown sugar in medium-size bowl until light and fluffy, 1 to 2 minutes. With a spoon, stir in flour and walnuts to make stiff dough. Remove 3/4 cup of the dough for topping and reserve. Press remaining 3/4 cup into prepared pan in even layer. Bake in preheated moderate oven (350°) for 15 minutes or until golden brown. Leave oven on. Meanwhile, prepare Top Layer: Beat together cream cheese and sugar in medium-size bowl until smooth. Beat in egg, milk and vanilla until blended. Beat in lemon zest and lemon juice. Spread cream cheese mixture over Bottom Layer. Crumble reserved 3/4 cup of dough over top. Sprinkle with the 2 tablespoons walnuts. Bake in preheated oven (350°) for about 30 minutes or until puffed in center. Remove pan to wire rack and cool to room temperature. Cut into 16 small squares. To store, wrap in plastic and refrigerate. Nutrient Value Per Square: 181 calories, 3 g protein, 12 g fat, 15 g carbohydrate, 50 mg sodium, 45 mg cholesterol. dess 84