Raspberry Squares - cooking recipe

Ingredients

1 c. butter
2 c. all-purpose flour
1 medium jar raspberry preserves
1 c. granulated sugar
6 egg yolks
2 c. ground walnuts
2 Tbsp. sour cream
2 Tbsp. granulated sugar
grated rind of 1 lemon
6 stiffly beaten egg whites

Preparation

Mix butter and flour as for pie crust. Work in the sour cream and sugar. Pat dough into 16 x 12 x 2-inch pan. Spread over it a thin layer of raspberry preserves.