In a large bowl, mix flour, half cup confectioners sugar and zest. Add yolks and butter, beat together. Form dough into two balls [ quarter and 0.75 ] and chill for one hour. Pat large ball into a 23 cm springform pan to form crust which will come up the sides 5 cm. Beat cheeses until fluffy. Add 2 cups confectioners sugar, flour and salt. Add eggs, one at a time, beating well after each addition. Stir coffee into amaretto to dissolve. Add to cheese mixture and mix well. Pour mixture into prepared pan. Bake in a preheated 275^ oven for 1 hour and 10 minutes. Towards end of baking time, roll out the remaining dough on a floured surface and cut into strips. Remove cake from oven, raise oven temperature to 350 degrees. Weave strips over surface of cake, cutting off excess dough. Press ends of strips with a spoon against the cake's crust. Return to oven and bake 15 minutes longer. Cool in oven with door ajar for one to two hours. Refrigerate. Remove sides when completely cool. Dust with confectioners sugar. ----