Roll out half of pastry and cut in 1-inch wide strips.
Place strips on a cookie sheet and bake at 450°
for about 6 to 8 minutes, or until browned. Combine
cleaned blackberries, sugar, nutmeg, vinegar, and
water. Spoon half of blackberry mixture into a lightly
buttered 3-quart baking dish; dot with 2 tablespoons of the
butter and top with baked pie crust strips. Cover with remaining
blackberry mixture and dot with remaining 2 tablespoons butter.
Roll out remaining pastry and cut into 1-inch wide strips.
Arrange strips lattice-fashion on top of blackberry cobbler.
Bake blackberry cobbler at 450° for 15 to 20 minutes,
or until lightly browned. Reduce heat to 300° and bake
for 45 to 55 minutes longer.
Serves 8.