Add berry filling to the pie crust, then top with strips of pastry. I chose to make a lattice crust. to do so, place enough strips going in the same direction over the fruit filling leaving a small space between each strip. The pull back half of the strips half way back from filling, leaving the other strips in place, then place a long strip across the pie in the opposite direction, return the folded strips back to their original position. Then pull the other strips that were not pulled back the first time half way across pie, then add another strip in the opposite direction. Repeat till the entire pie is covered. Fold over lapping strips underneath bottom crust, then crimp edges.