This epic Genoese tart, filled with swiss chard (or, in some versions, artichokes), was traditionally made with 33 layers of dough—one for each year of Christ's life.
For the Pastry
For the Filling
Variation: Substitute 2 sheets (about 3 lbs.) thawed, frozen puff pastry for dough. Roll out 1 sheet, fill as in step 5, then roll out remaining sheet and place over filling and bake as in step 6.