Preheat oven to 325°. In a medium bowl, combine flour, chives, salt, and pepper. In another bowl, combine water and oil; drizzle into flour mixture, stirring constantly. (Dough will appear to be dry but will come together when gently worked with hands.)
On a lightly floured surface, roll dough into a 12-x-7½-inch rectangle and prick all over with a fork. Sprinkle with pistachios and chives; press into dough. Using a pizza cutter, cut dough in 3-x-1½-inch rectangles. Transfer to large ungreased baking sheet.
Bake 20 to 23 minutes or until crackers are crisp and begin to brown. Transfer to wire racks. Cool.
Yield: 15-20 crisps.